Biggest Abandoned Skyscrapers and Mega Projects

Humans love to push boundaries, building taller, bigger, and more extraordinary structures. But for every success like the Burj Khalifa or the Eiffel Tower, there's a graveyard of mega-fails that halfway built and then abandoned. What if I told you there’s a 1,080-foot-tall skyscraper, towering over a city but completely empty. Or a $12 billion man-made island shaped like a palm tree with half-built villas and empty beaches. What about a city built for 1 million people, costing more than NASA’s Mars missions, but with just empty highways and silent skyscrapers? Or 732 fairy-tale castles sitting on a hillside, silent as a horror movie set. Then there’s a mall bigger than 120 football fields but its 99% empty.

Welcome back to another amazing episode of 4 Ever Green. Today, we'll show you "15 Abandoned skyscrapers and mega projects." And make sure you stick with us to the end, we’ll take a look at a replica of Italy’s Portofino in India, so deserted that the funds used could have built 600 Taj Mahals instead. So, get ready, hit the like button, and let's dive in!

 

15. Ryugyong Hotel:

Imagine a 1,080-foot-tall skyscraper shaped like a pointy glass pyramid, towering over a city but completely empty. Welcome to North Korea’s Ryugyong Hotel, a $750 million “ghost tower” that’s never hosted a single guest!

Construction began in 1987 to rival the world’s tallest buildings, like the Burj Khalifa. By the 1990s, money ran out, and the concrete skeleton stood frozen for 16 years. Locals nicknamed it the “Hotel of Doom,” a haunting symbol of the regime’s failed ambitions. In 2011, the government spent millions to cover up their embarrassment with a shiny glass exterior. But inside? It's all empty halls, rusty wires, and total silence, like those ghostly, abandoned skyscrapers from Gotham City, but this is real. In 2018, they even added LED lights to make it glow at night, yet it’s still as useless as a million dollars flashlight. For context, $750 million could’ve fed North Korea’s entire population for 3 years. Instead, they built the world’s tallest unoccupied building. What's even crazier? There's a rumor that Kim Jong Un once tried to open it, but engineers warned it might collapse. Yikes.

 

 

 

 

14. Golden Finance 117:

Golden Finance 117, the tallest abandoned skyscraper in the world, is a super-tall skyscraper project that was never finished. This tower stands 597 meters tall with 128 floors, and it's the tallest building in the world that has a flat roof, it doesn't have an antenna or railing. Its sleek design looks like a cane. Originally, Golden Finance 117 was meant to be the centerpiece of the Tianjin Goldin Metropolitan Business Center, a place planned to have luxury homes, entertainment spots, schools, and shops.

Construction of the $1.2 billion Golden Finance 117 began on September 10, 2008, and by the end of 2013, the building had reached over 200 meters tall. It hit its full height on September 8, 2015, but then construction stopped because of financial problems caused by the crash in China’s stock market. The building was supposed to have 128 floors, and there were plans to restart construction in 2018. However, as of 2025, the skyscraper remains unfinished and has been abandoned. Golden Finance 117, which has no cladding on its exterior, affects China ‘s skyline with its exposed steel structure and huge windows.

 

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13. Burj Al Babas:

Imagine 732 mini-castles, straight out of a fairy tale, perched on a hillside but completely empty. Welcome to Burj Al Babas, Turkey’s $200 million ghost town that looks like Disneyland’s creepy cousin. Built for the ultra-rich, this “luxury village” promised mini-castles with turrets, marble floors, and private pools. But by 2019, the developers went bankrupt, leaving behind a maze of half-finished towers and peeling turrets. Now, it looks like a kingdom after the apocalypse, with half-built homes, broken windows, and empty streets. Locals call it the “Disney Graveyard,” a haunting reminder that even dreams of gold can turn to dust. Each castle cost about $273,000, just to sit and decay in the Turkish countryside. But today they're worth less than a bag of rice. For 200 million, Turkey could have built 40 schools. Instead, they ended up with a hillside full of concrete fairy tales. Frozen since 2019. Vines are climbing the walls, and owls have taken over the towers. Will rich buyers ever show up? It's doubtful.

 

 

 

12. Dubai Palm Jebel Ali:

Think Atlantis, but made of sand and concrete. Dubai’s Palm Jebel Ali, a $12 billion man-made island shaped like a palm tree, was meant to be a playground for billionaires. Instead, it’s a surreal graveyard of half-built villas and empty beaches. Part of the legendary Palm Islands, this man-made wonder was supposed to have 100 luxury hotels, 5,000 villas, and theme parks. Today, the island is just a skeleton of cranes and crumbling roads. Construction started in 2002, but the 2008 financial crisis hit like a Marvel villain, sinking dreams faster than Atlantis. By 2009, work stopped, leaving a half-built palm-shaped skeleton in the ocean. The only "residents" are stray crabs and the occasional seagull. Satellite images show a ghostly palm, no water parks, no yachts, just silence. For $12 billion, Dubai could have built 24 Burj Khalifas or funded global malaria eradication for five years. Instead, they built a ghost town on the water. Even worse? The project harmed marine life, turning a dream into an environmental nightmare.

 

 

 

11. Oceanwide Plaza:

Oceanwide Plaza was supposed to be a mixed-use complex with luxury homes, hotels, offices, and shops. But over time, it has turned into an abandoned building. Construction began in 2015 on what was planned to be three towers, and 60% of it was finished before stopping in 2019. Designed to add prestige to the city, Oceanwide Plaza couldn't be completed because of financial problems and crises faced by the companies behind the project. Now, it's known as the 3rd tallest abandoned skyscraper.

While the exterior of Oceanwide Plaza was finished, the interior remains incomplete, turning the skyscraper into a shell covered in graffiti. Graffiti artists frequently enter the building to paint intricate art, particularly on the unfinished terraces of its facade. With people BASE jumping from the top, Oceanwide Plaza is now under 24-hour surveillance for security. So far, it has cost 1 billion dollars. Since an additional $800 million is needed to complete the project, Oceanwide Plaza remains an abandoned skyscraper.

 

 

10. Torre Insignia:

Torre Insignia, also known as Torre Banobras, is a striking building designed by architect Mario Pani Darqui. Completed in 1962, this 25-story skyscraper shaped like a triangular prism originally served as the headquarters for the state bank Banobras. It was abandoned after the 1985 Mexico City earthquake, which had a magnitude of 8.0, because of safety concerns. Despite surviving six major earthquakes from 1985 to 2017 without any damage, Torre Banobras remains abandoned.

Constructed from reinforced concrete, glass, and aluminum, Torre Insignia stands out with a total floor area of 236,806 square meters and a surface area of 83,056 square meters, and it includes the world’s tallest bell tower. Despite the building's abandonment, the bell—a gift from the Belgian government—was played on special occasions by bell artist Yolanda Fernandez de Cordoba until her death. Known as one of the most durable buildings in the city for surviving major earthquakes, Torre Insignia was bought by Cushman and Wakefield in 2008 and underwent a redesign in 2011. Although it is still abandoned today, this skyscraper is a significant piece of Mexican architecture and continues to hold promise due to its durability and aesthetic appeal.

 

 

Before we move on to our next selection, we invite you to check out our video on 20 Most Beautiful Buildings That Took Creativity At Another Level. Now, let's get back to our list.

 

 

 

9. The Ghost City of Ordos Kangbashi:

Imagine a city built for 1 million people but instead of crowds, cars, and chaos, there’s just empty highways, silent skyscrapers, and the sound of your own footsteps. Welcome to Ordos Kangbashi, a $161 billion ghost town that feels like Matrix Zion… if humans forgot to show up.

Built in the 2000s during China’s coal boom, this city was meant to be a utopia. This futuristic metropolis has museums shaped like alien spaceships, stadiums big enough for 100,000 fans, and apartment towers that stretch to the clouds. But for years, it sat empty, a post-apocalyptic playground with no kids, no shops, and no life. Locals called it the “City of No Tomorrow.” This place cost more than NASA’s Mars missions. For $161 billion, China could’ve solved world hunger for two years. Instead, they built a city where stray dogs outnumber residents. The few people who live here joke they’re “neighbors with ghosts.” Today, it’s slowly filling up, thanks to cheap rents and government pushes. After 15 years, it’s still 70% empty. Will it ever thrive? Maybe by 3023. Until then, it’s the world’s most expensive zombie city.

 

 

 

8. Sathorn Unique Tower:

Meet Sathorn Unique Tower, Bangkok’s $140 million “Vertical Graveyard” that’s more Silent Hill than Luxury Living. Sathorn Unique Tower, known colloquially as the Ghost Tower, is the sixth-tallest abandoned skyscraper in the world. This skyscraper, which has a total of 49 floors, including the ground floor and the garage floor, was planned to be a first-class luxury apartment complex. Designed as a postmodern concrete skyscraper, defined by a series of stacked curved balconies and columns, the construction of Sathorn Unique Tower began in 1990. In 1997, when the building was 80% complete, construction was halted due to the financial crisis in Asia. The building was completely abandoned after the architect Rangsan Torsuwan was accused of an assassination plot.

 

 

The skyscraper, originally planned to house 600 apartment units, began to deteriorate from neglect after being abandoned. Sathorn Unique Tower, now a hazardous ruin with exposed wires and rusty metal, has become even more unsafe as it is frequented by homeless and addicted individuals. Despite these dangers, many visitors still enter this tower for exploration, climbing to the top via a narrow stairwell.

 

7. The Ciudad Real Central Airport:

Imagine an airport with a runway longer than New York’s Central Park, shiny terminals, and not a single passenger in sight. This is Spain's $1.1 billion ghost airport, a massive White Elephant so empty, even tumbleweeds would get bored.

Built to rival Madrid’s airport, this mega-airport opened in 2008 with dreams of 10 million travelers a year. But only 10 flights ever landed here. By 2012, it shut down, drowning in debt. The 15,000-foot runway is perfect for racing Ferraris, which actually happened once. The control tower is more like a lonely lighthouse with no planes to guide. With $1.1 billion, Spain could have built 22,000 schools. Instead, they built an airport where silence is louder than the roar of jet engines. In 2020, it sold for just $130 million, less than a used private jet. Today, it’s partially reopened for cargo flights, but the terminals still echo like a Tarantino ghost town.

 

6. The World Islands:

Welcome to Dubai’s World Islands, a $14 billion map of Earth made of sand. This artificial archipelago of 300 islands was meant for billionaires to own private islands shaped like “France,” “Australia,” or “Hollywood.” But today, most islands are drowning or sitting empty. Only one (yes, ONE) is developed, a “Switzerland” with a single hotel.

Built in the 2000s with enough sand to bury Manhattan, this project was Dubai’s ultimate flex. Stars like Brad Pitt and Angelina Jolie reportedly bought islands but never built a thing. The islands are literally sinking due to erosion, and the 2008 financial crisis turned investors into ghosts. The islands were supposed to host luxury resorts and mega-mansions. Instead, they’re home to stray fish and eroded beaches. For $14 billion, you could buy Luxembourg’s entire GDP but Dubai got a floating ghost town instead.

 

 

 

 

5. Centro Financiero Confinanzas:

Designed as the country’s largest financial center project to symbolize Venezuela's economic strength, Centro Financiero Confinanzas, also known as Torre de David, is one of the world’s tallest abandoned skyscrapers. This 45-story building, one of the tallest in Latin America, began construction in 1990. However, construction halted in 1994, just three years later, due to the death of banker David Brillembourg and the onset of a financial crisis in the country. At that point, 60% of the skyscraper was completed.

After sitting unused for some time, Centro Financiero Confinanzas became the tallest shantytown in Venezuela. It was occupied by more than 200 families during a housing shortage in 2007, growing to 700 families by 2011. Deemed unsafe, the government cleared out the building and evacuated its residents in 2014. The skyscraper, which also suffered damage to its upper floors from an earthquake in 2018, remains in an abandoned state in Caracas.

 

4. The Sky City Tower:

Sky City Tower was set to be the tallest skyscraper in the world, aiming to surpass even the Burj Khalifa with a staggering height of 838 meters and 220 floors. It was ambitiously planned to shoot up in just 90 days, faster than the plot of a Marvel movie. Construction began in 2013 under the daring promise to finish in 90 days. However, engineers quickly stopped the project due to a shaky design and lack of permits. By 2014, the project was delayed, leaving behind a 202-meter-tall base of steel beams and broken dreams. Today, its condensed base stands like a concrete tombstone in Changsha, China. Locals have dubbed it the "Tower of Broken Promises"—a $1.8 billion "what if?" that never reached the sky. For comparison, it’s like building half the Empire State Building and then giving up. If completed, it would have housed schools, hospitals, and living space for 30,000 people. Now, it’s merely a ghostly base with cranes rusting in the rain.

 

3. Largest Ghost Mall, China:

Imagine a mall so big it could fit 100 football fields, complete with a roller coaster, a pirate ship, and even canals like those in Venice. Now picture it 99% empty. Welcome to New South China Mall, a $1.3 billion ghost town in the retail world, where shadows outnumber shoppers. Opened in 2005 as the world's largest mall, it was meant to be a shopper's paradise with room for 2,350 stores, theme parks, aquariums, and a giant arcade. But today? Less than 1% of its stores are open. The escalators are stuck, the food courts are like cobwebbed cafeterias, and the Venetian canals have turned into stagnant pools of regret. For $1.3 billion, China could have bought 26 million Big Macs... instead, they got a monument to emptiness. It's still technically "open," with security guards patrolling halls where their footsteps echo the loudest. The few remaining stores? A lonely McDonald’s and a nail salon that see more dust than customers.

 

 

 

2. Eurosky Tower:

Imagine a 120-meter skyscraper in the shadow of the Colosseum… but instead of Roman glory, it’s a $400 million concrete corpse. Meet Eurosky Tower—Rome’s abandoned luxury tower which was supposed to be Italy’s modern marvel—luxury apartments with rooftop pools and skyline views. Instead, it’s a rotting shell, abandoned mid-construction after corruption scandals blew up. Started in the 2000s, this tower became a playground for shady deals. By 2012, the money vanished, leaving a concrete skeleton wrapped in scaffolding. Today, pigeons nest in empty balconies, and graffiti artists tag floors meant for penthouse parties. For $400 million, Italy could’ve restored the Leaning Tower of Pisa 80 times over. Instead, they built a vertical ghost town. Locals have nicknamed it "The Tower of Shame"—a modern ruin that makes Nero's follies seem sensible.

 

 

 

1.      Lavasa City:

Imagine building a mini-Italy in the middle of India’s Western Ghats… but instead of pasta and piazzas, you find half-finished villas, empty lakes, and a $30 billion lawsuit. Welcome to Lavasa City, a private utopia that turned into a real-life “Truman Show” set without the cameras or audience. Launched in 2000, this mega-project promised to house 300,000 people. But builders hacked down forests, drained rivers, and ignored environmental laws. By 2010, courts slammed the brakes, calling it “illegal.” Turns out, bulldozing forests and hillsides isn’t a great look. Today, it’s a ghost town of cracked roads, empty hotels and buildings swallowed by weeds. For $30 billion they planned to spend, India could’ve built 600 Taj Mahals but instead, they got a concrete mirage that even monkeys avoid. The saddest part? Lavasa’s still “alive” on paper, with a skeleton crew maintaining its zombie streets.

 

 

 

And that's it for today. Thanks for watching! Don't forget to like, subscribe, and stay tuned for more captivating adventures from 4 Ever Green!

26 Hidden Underground Cities in America You Won’t Believe Exist

Some cities are so secret that they don’t even appear on maps. Like a city in America hidden beneath the ice, or an underground city designed to shelter 1 million people. Or take the secret tunnel network beneath Washington, D.C. and a mansion under the earth or a nightclub thriving below the surface, or even a lush garden flourishing underground. These aren’t just ideas—they exist, and they’re right here in America.

 

Welcome back to another amazing episode of 4 ever green. Today we are diving into 26 hidden underground cities in America. From underground hotel to luxurious subterranean retreats. So, are you ready to explore the hidden world beneath your feet? Click subscribe and let’s dive in!

 

 

 

 

26. Camp Century, Greenlands

 

Camp Century was a U.S. military base built beneath the ice sheet in northwest Greenland during the Cold War. Constructed in 1959 by the U.S. Army Corps of Engineers, the facility was part of Project Iceworm, a secret plan to deploy nuclear missiles under the ice. The camp was located 800 feet below the surface and covered an area of approximately 3,000 acres. The base housed up to 200 soldiers and scientists and included amenities like living quarters, a kitchen, a hospital, a chapel, and a recreation room. It was powered by a portable nuclear reactor, the PM-2A, which provided electricity and heat. The camp also had a network of tunnels, some as long as 1,000 feet, used for transportation and storage. Camp Century was abandoned in 1967 due to shifting ice, which made the tunnels unstable. 

 

25. Washington D.C. Underground

Beneath the streets of Washington, D.C., lies a vast network of tunnels connecting government buildings, subway stations, and offices. This underground system, often referred to as the D.C. Underground, spans several miles and is located 20 to 30 feet below ground. It was built to provide a secure and efficient way for government workers, including members of Congress, to move between buildings without facing traffic or weather challenges. The underground network includes amenities like restaurants, food courts, and shops, making it a functional and convenient part of daily life for thousands of government employees. Despite its importance, the system remains largely unknown to the general public, functioning as a secret network that keeps the city moving.

 

24. Mini Manhattan

Beneath New York City lies "Mini Manhattan," a vast underground network of tunnels, basements, and utility spaces spanning the entire island. This subterranean layer, reaching depths of up to 200 feet, supports the city’s infrastructure, transportation, and nightlife. The New York City Subway, covering 665 miles of track, is its most prominent feature, with some stations like 191st Street sitting 180 feet below ground.  In 1969, architect Jay Swayze proposed an ambitious plan to build an underground city thousands of feet below New York. Designed to house 1 million people, it included underground skyscrapers, homes, stores, and parks, serving as a safe haven during nuclear attacks. Mini Manhattan has inspired films like "The Warriors" and video games like "Tom Clancy’s The Division." Projects like East Side Access continue to expand this underground world.

 

 

23. Raven Rock

Raven Rock, also known as the Alternate Joint Communications Center (AJCC), is a highly secretive military bunker located near the Pennsylvania-Maryland border. Constructed in the 1950s during the Cold War, it was built to ensure government continuity during nuclear threats. Nestled deep within Raven Rock Mountain, the facility is shielded by natural granite and reinforced concrete, along with two massive steel doors, each 3.5 feet thick and weighing 30 tons. Covering over 650,000 square feet, it features five buildings with 15 floors that include 50 to 80 offices each. Often referred to as an underground city, Raven Rock is self-sufficient with amenities like a cafeteria, barber shop, medical center, and its own water and power supplies. Continuously operational, the bunker is modernized to combat threats including cyberattacks and played a role during events like the Cuban Missile Crisis. Raven Rock remains integral to U.S. national security and has even appeared in pop culture, notably in the 2007 film "Live Free or Die Hard."

 

 

22. The Survival Condo Project, Kansas

The Survival Condo Project is a luxury underground bunker community built inside a converted Atlas missile silo in Kansas. The silo, originally constructed during the Cold War in the 1960s, is located 174 feet underground and spans 15 stories. The facility covers 54,000 square feet and is designed to house up to 75 people for extended periods. Each of the 12 condominium units is equipped with modern amenities, including full kitchens, bathrooms, bedrooms, and entertainment systems. The facility also features communal spaces like a swimming pool, gym, movie theater, and medical clinic. The Survival Condo Project is designed to withstand nuclear blasts, EMPs, and other catastrophic events. The condos are sold for 3millionto3millionto4.5 million each, attracting affluent buyers seeking a secure retreat.

 

 

 

If you liked this video so far, leave a like and you can also check out 15 Secret Military Labs & Underground Bunkers Hidden by Governments in Front of You on our channel 4 Ever Green.

 

 

 

21. Las Vegas Underground Mansion

The Las Vegas Underground Mansion is a luxurious private residence built beneath the surface of the Nevada desert. Located approximately 26 feet underground, the mansion spans 15,000 square feet and is designed to provide a secure and opulent living space. A man named Jerry Henderson built it in 1978. He planned to survive the end of the world there. It features 10 rooms, including bedrooms, bathrooms, a kitchen, a living area, and a home theater. It even has a garden, a swimming pool, and a mini golf course to keep you from getting bored.

 

 

20. SubTropolis, Kansas City, Missouri

SubTropolis, located in Kansas City, Missouri, is one of the largest underground business complexes in the world. Spanning an astonishing 55 million square feet, this man-made cave system is carved into a limestone mine and houses over 1,700 businesses, including warehouses, offices, and data centers. The facility is so vast that it has its own roadways, truck docks, and rail access, making it a fully functional underground city. The concept of SubTropolis was developed in the 1960s by the Hunt Midwest company. The underground environment offers a constant temperature of around 65°F (18°C) year around. This unique feature has attracted major companies like the U.S. Postal Service, Hallmark, and Ford Motor Company, which use the space for storage, manufacturing, and logistics.

 

19. Underground Atlanta, Georgia

Underground Atlanta is a historic district located beneath the streets of downtown Atlanta, Georgia. This subterranean area, covering approximately 12 acres, was once the original street level of the city in the late 19th century. After the Civil War, Atlanta raised its street level by one to two stories to improve sanitation and reduce flooding, burying the old storefronts and sidewalks.  The depth of Underground Atlanta varies, with some areas lying 10 to 15 feet below the current street level. The underground space includes restored storefronts, brick-lined streets, and vintage signage, offering visitors a glimpse into Atlanta’s past. Underground Atlanta was rediscovered in the 1960s and reopened as a commercial and entertainment hub in 1969. One of its most notable attractions is the Historic Kenny’s Alley, a collection of nightclubs and bars that became a popular nightlife destination in the 1980s and 1990s. It served as a filming location for movies and TV shows, including scenes in the 2016 film "The Accountant,"

 

18. Forestiere Underground Gardens, California

 

The Forestiere Underground Gardens in Fresno, California, are a unique subterranean complex built by Baldassare Forestiere, a Sicilian immigrant, between 1906 and 1946. Forestiere, who had experience digging tunnels in Boston and New York, spent 40 years excavating the hardpan soil by hand to create this underground retreat. The site spans 10 acres and includes over 90 rooms, courtyards, and passageways, some as deep as 25 feet below ground. The underground spaces, with their natural insulation, stay cool even in the hottest weather, creating a secret underground paradise. Some of the trees are over 90 years old.

 

17. Permafrost Tunnel Alaska

The Permafrost Tunnel in Fox, Alaska, is a unique underground facility operated by the U.S. Army Cold Regions Research and Engineering Laboratory (CRREL). Located about 10 miles north of Fairbanks, the tunnel was constructed in the 1960s to study permafrost, a layer of permanently frozen ground that underlies much of Alaska. The tunnel extends 360 feet into the permafrost, with a depth of about 50 feet below the surface, and covers an area of approximately 1,000 square feet. The tunnel was built to help scientists understand the properties of permafrost and its impact on infrastructure, climate change, and ecosystems. The tunnel’s walls contain visible layers of ice wedges, fossilized plants, and even ancient animal bones, offering a window into the region’s prehistoric past.

 

 

 

Before proceeding to our next selection, we invite you to explore our video on 10 Most Beautiful Hidden Caves in the World. Now, back to our list.

 

 

16. Los Angeles Underground Tunnels

Beneath the streets of Los Angeles lies a network of underground tunnels that date back to the early 20th century. These tunnels, spanning approximately 11 miles in total, were originally built for bootlegging during Prohibition in the 1920s. They were constructed by smugglers and organized crime groups to transport alcohol illegally from the Los Angeles Harbor to speakeasies and hidden bars throughout the city. The tunnels vary in depth, with some sections reaching 30 to 40 feet below ground, and they connect basements, warehouses, and other hidden entry points. One of the most famous tunnels is located beneath the Hotel Alexandria, a historic building in downtown Los Angeles. The hotel’s basement was connected to the tunnel network, allowing smugglers to move goods discreetly. They were featured in the 2013 video game "L.A. Noire," which explores the city’s crime-ridden history. 

 

15. New York City subterranean world

Beneath New York City lies a vast subterranean network, including the 665-mile subway system, utility tunnels, and hidden spaces. The subway, built in 1904 by the Interborough Rapid Transit Company (IRT), reaches depths of 180 feet at stations like 191st Street. Utility tunnels house electrical lines, water pipes, and communication cables, while Water Tunnel No. 3, part of the water supply system, extends 800 feet deep. The underground also includes abandoned stations like the Old City Hall Station, a 1904 architectural gem, and former speakeasies like the William Barnacle Tavern, now a trendy bar. During Prohibition, tunnels were used to smuggle alcohol, adding to the city’s underground lore. This subterranean world has inspired films like "The Warriors" and video games like "Tom Clancy’s The Division." 

 

14. Virginia City Mines, Nevada

The Virginia City Mines in Nevada are a historic network of tunnels from the Comstock Lode silver mining boom (1859–1880). Built by thousands of miners, including European and Chinese immigrants, the mines extend over 14,000 feet and reach depths of 3,200 feet, making them some of the deepest of their time. At its peak, the Comstock Lode produced over $400 million worth of silver, fueling Nevada’s growth and the U.S. economy. Virginia City, once home to 25,000 people, thrived with amenities like saloons, theaters, and an opera house. Today, the mines are part of the Virginia City National Historic Landmark District, with tours available at the Chollar Mine and Ponderosa Mine. These tours showcase the harsh conditions and innovative mining techniques of the era.

 

13. Burlington Underground, Vermont

The Burlington Underground is a Cold War-era bunker built in the 1960s beneath Ethan Allen Air Force Base in Vermont. Constructed by the U.S. Army Corps of Engineers, it spans 30,000 square feet and sits 42 feet below ground. Designed to house 300 people, including government officials and military personnel, it includes offices, dormitories, and communication centers, all equipped with power, water, and air filtration systems. The bunker was part of a nationwide network to ensure government continuity during nuclear attacks. It was decommissioned in the 1990s after the Cold War ended and is now maintained by the Vermont National Guard for training and emergency preparedness.

 

12. Springfield Underground – Missouri

The Springfield Underground in Missouri is one of the largest underground storage and business complexes in the United States. Located in a former limestone mine, the facility spans over 3.2 million square feet and reaches depths of up to 100 feet below the surface. The underground space was originally excavated in the 1940s by the Kiewit Construction Company for mining operations, but it was later repurposed in the 1960s for commercial use.

The facility was developed to provide secure, climate-controlled storage and operational space for businesses.  Its natural limestone walls maintain a constant temperature of around 60°F (15°C), making it ideal for storing sensitive materials like food, pharmaceuticals, and data servers. The underground complex includes warehouses, offices, and manufacturing spaces, with amenities like loading docks, freight elevators, and extensive roadways for easy access. Today, Springfield Underground houses over 70 businesses, including major companies like Kraft Foods and Tyson Foods.

 

11. Cheyenne Mountain Complex – Colorado

The Cheyenne Mountain Complex is a military installation located inside Cheyenne Mountain near Colorado Springs, Colorado. Built during the Cold War in the 1960s, the facility was designed to house the North American Aerospace Defense Command (NORAD) and other critical operations. The complex is buried 2,000 feet beneath the mountain’s surface and spans 4.5 acres, with a total area of approximately 200,000 square feet. The facility was constructed by the U.S. Army Corps of Engineers to withstand nuclear attacks, natural disasters, and other catastrophic events. It includes 15 buildings mounted on massive springs to absorb shock from explosions or earthquakes. The Cheyenne Mountain Complex was designed to house up to 800 personnel, including military officers, technicians, and support staff. The complex has been featured in films like "WarGames" and TV shows like "Stargate SG-1," cementing its place in popular culture.

 

10. The Dallas Underground – Texas

The Dallas Underground, also known as the Dallas Pedestrian Network, is a system of tunnels and skywalks connecting buildings in downtown Dallas, Texas. Built in the 1960s and 1970s, the network spans approximately 3.5 miles and is located 20 to 30 feet below street level. The underground network was developed by private businesses and property owners, with contributions from architects and urban planners. It connects over 35 city blocks, linking office buildings, hotels, restaurants, and retail spaces. The tunnels include amenities like food courts, shops, and art installations, making them a functional and vibrant part of downtown Dallas.

 

9. The Caverns, Tennessee

The Caverns in Pelham, Tennessee, is a natural cave system transformed into a unique underground music venue and tourist attraction. Located 150 feet below the surface, the cave spans over 30,000 square feet and features a main chamber with a stage, seating areas, and a natural acoustic environment. The cave was discovered in the early 20th century and has been used for various purposes, including as a mushroom farm and a fallout shelter, before becoming a music venue in the 1980s. The Caverns were developed by owner Todd Mayo to create a one-of-a-kind experience for music lovers. The venue hosts concerts, festivals, and events, with a capacity of up to 1,000 people. The Caverns gained national attention as the filming location for the PBS series "Bluegrass Underground," which highlights live performances in the cave. 

 

8. Village Underground, New York City, New York

Village Underground is a hidden performance space located beneath Greenwich Village in New York City. Situated 15 feet below street level, the venue spans approximately 5,000 square feet and has become a cornerstone of the city’s vibrant music and arts scene. Established in the early 2000s, the space was created by Aron Bender and Daniel Nardicio to provide an intimate setting for live performances, particularly for emerging artists. The venue was designed to accommodate up to 200 people, offering a cozy yet dynamic atmosphere for concerts, comedy shows, and theatrical performances. Village Underground has hosted performances by notable artists like Amy Winehouse, Adele, and Lady Gaga, helping to launch their careers and cementing its reputation as a hub for talent. Village Underground has been featured in publications like The New York Times and Rolling Stone, highlighting its role in shaping New York’s music scene. 

 

7. The Franklin Delano Roosevelt (FDR) Underground Vault, New York

The Franklin Delano Roosevelt (FDR) Underground Vault is a secure storage facility located beneath the FDR Presidential Library and Museum in Hyde Park, New York. Built during FDR’s presidency in the 1940s, the vault is situated 30 feet below ground and spans approximately 10,000 square feet. It was designed to protect sensitive documents and artifacts related to FDR’s administration, including records from World War II and the New Deal. While the vault is not open to the public, it houses millions of pages of documents, photographs, and audio recordings. The vault’s contents have been used in historical films like "Pearl Harbor" and "Hyde Park on Hudson," Historians like Doris Kearns Goodwin have referenced the vault’s materials in works such as "No Ordinary Time,"

 

6. The Vivos xPoint Shelter Complex, South Dakota

The Vivos xPoint Shelter Complex is a private underground bunker community located in the Black Hills of South Dakota. Built on the site of a former U.S. Army munitions depot, the complex spans 18,000 acres and includes 575 reinforced concrete bunkers, each capable of housing up to 20 people. The bunkers are buried 20 to 30 feet underground and are designed to withstand nuclear blasts, EMPs, and other catastrophic events. The complex was developed by Vivos Group, a company specializing in survival shelters, and was completed in 2015. Each bunker is equipped with amenities like kitchens, bathrooms, sleeping quarters, and storage areas, making them fully self-sufficient. The facility also includes communal spaces, such as a medical center, a school, and recreational areas, creating a complete underground community. The Vivos xPoint Shelter Complex is designed to house up to 10,000 people during emergencies.

5. The Cavern Suite, Arizona

 

The Cavern Suite is a one-of-a-kind underground hotel room located 220 feet below the surface in the Grand Canyon Caverns in Arizona. Built in the 1970s, the suite is part of a larger network of limestone caves discovered in 1927. The room is known as the darkest and quietest hotel room in the world, offering a unique and immersive experience for guests. The room is accessible via a 210-foot elevator ride and includes amenities like a queen-sized bed, a sitting area, and a private bathroom. The air in the suite is pumped from 65 miles away to ensure it is safe to breathe, as the natural cave environment lacks sufficient oxygen.

 

4. Light Tunnel, Detroit, Michigan

Beneath Detroit lies a network of tunnels, including the iconic Light Tunnel, a 1,000-foot pedestrian walkway connecting the Renaissance Center to the GM Renaissance Center Parking Garage. Built in the 1970s, it sits 20 feet below ground and features stunning LED lighting that shifts through colors, creating a mesmerizing experience. With moving walkways, seating areas, and security systems, it’s a safe, climate-controlled passage for thousands daily. Detroit’s underground also includes historic salt-mining tunnels and the McNamara Terminal Light Tunnel at Detroit Metro Airport. This 700-foot tunnel dazzles with colorful LEDs and glass panels etched with flowing river designs, offering travelers a calming, artistic journey.

 

3. The Underground at Disney World, Florida

The Underground at Disney World, known as the Utilidor system, is a network of tunnels beneath the Magic Kingdom in Orlando, Florida. Built during the park’s construction in the late 1960s, the tunnels span 9 acres and are located 15 to 20 feet below ground. The tunnels connect key areas of the park, including ride entrances, restaurants, and shops, enabling efficient transportation of goods, costumes, and personnel. The system includes break rooms, offices, and storage areas, supporting the park’s daily operations. The system was designed to allow staff to move around the park unseen, maintaining the park’s immersive experience for visitors. The underground network is used by thousands of Disney employees, known as Cast Members, who rely on it to perform their roles without disrupting the park’s magic. 

 

2. Chicago Pedway, Illinois

 

The Chicago Pedway is an extensive network of underground tunnels and overhead bridges connecting buildings in downtown Chicago, Illinois. Spanning approximately 5 miles, the Pedway is located 10 to 20 feet below street level and links over 50 buildings, including government offices, train stations, shopping centers, and hotels. The network includes amenities like food courts, retail shops, and seating areas, making it a functional and convenient part of downtown Chicago.

 

 

1. The Seattle Underground, Washington

The Seattle Underground is a network of historic streets and storefronts buried beneath the modern city of Seattle, Washington. Created after the Great Seattle Fire of 1889, the underground area spans several blocks and lies 10 to 35 feet below the current street level. The fire destroyed much of the city, prompting officials to raise the street level to improve drainage and prevent future flooding, burying the original buildings. The area was largely abandoned until the 1960s, when local historian Bill Speidel led efforts to restore and open it to the public as a tourist attraction. Today, the Seattle Underground covers approximately 12 acres and is accessible through guided tours. The Seattle Underground has been featured in documentaries and travel shows, including "Ghost Adventures," 

 

 

 

And that’s it for today’s journey into America’s hidden underground cities! Don’t forget to like, share, and subscribe for more fascinating explorations. See you in the next video!

 

 

 

Ancient Creatures That Are Somehow Still Alive Today in 2025

Did you know there are animals walking around today that were alive when dinosaurs ruled the Earth? It's like having a real-life time machine. Have you ever seen an ancient fish that might have been swimming when dinosaurs roamed the Earth? How about those that have roamed the earth for over 500 million years, witnessing the rise and fall of the dinosaurs themselves? You're in for a real surprise!

Welcome back to another amazing episode of 4 Ever Green. Today, we’ll show you “15 ancient creatures that are still alive.” These "living fossils" have witnessed millions of years of history, and they're still here today. From giant fish that look like they're from another planet to tiny worms with super sticky tricks, you'll be amazed by these living links to the past. And just wait until you hear about a mysterious deep-dweller whose lineage goes back nearly 400 million years! Keep watching. Ready? Click subscribe, and let’s jump right in!

15. Tuatara:

The tuatara, a remarkable reptile native to New Zealand, is often referred to as a "living dinosaur." Despite its lizard-like appearance, the tuatara is not a lizard but belongs to a unique group of reptiles called Sphenodontia, which flourished around 200 million years ago. Today, the tuatara is the only surviving member of this ancient lineage. What makes the tuatara truly extraordinary is its ability to remain almost unchanged throughout millions of years. The tuatara boasts several distinctive features, such as a third "parietal" eye on the top of its head, which is thought to help regulate its body temperature and hormone production, although its full purpose remains a mystery. Tuataras thrive in cooler temperatures, unusual for reptiles, and can live up to over 100 years. Their slow metabolism and unique breeding habits, which include extremely long incubation periods of up to 15 months for their eggs, contribute to their long lifespan. Predominantly nocturnal, these creatures are fierce predators at night, feeding on insects, eggs, and small vertebrates.

14. Alligator Gar:

The alligator gar is a fish that takes us back 100 million years through the corridors of time. Found primarily in the rivers and lakes of the Southern United States, this fish is renowned for its formidable size and prehistoric appearance, including a long, tooth-filled snout that resembles that of an alligator, hence its name. One of the most fascinating aspects of the alligator gar is its ganoid scales, which are thick, diamond-shaped scales that act like a natural armor. These scales are not only a defense mechanism but also a remarkable holdover from its ancient ancestors. Alligator gars are among the largest freshwater fishes in North America, capable of growing up to 10 feet long and weighing over 300 pounds. They are ambush predators, relying on their stealth and speed to catch prey, which includes fish, waterfowl, and small mammals. Despite their fearsome appearance and predatory nature, alligator gars are generally not a threat to humans unless provoked.

13. Velvet Worms:

Predating the dinosaurs, velvet worms have been crawling the Earth for over 500 million years. These creatures belong to the phylum Onychophora. Their name comes from their soft, velvet-like skin, which covers their elongated bodies. Despite their worm-like appearance, velvet worms are closer to arthropods, sharing some characteristics with both arachnids and annelids. They typically measure between 0.5 to 8 inches in length and are found in tropical and subtropical rainforests, thriving in moist, shaded environments. Velvet worms are nocturnal predators, using a unique method of capture: they shoot a sticky, glue-like substance from glands located near their mouths to entrap their prey, which usually includes smaller insects and other small invertebrates. Once their prey is immobilized, they use their sharp jaws to inject digestive saliva that liquefies the internal parts of the prey, which are then sucked out.



If you liked this video so far, leave a like and you can also check out 10 Ancient Creatures That Are Still Alive on our channel 4 Ever Green.

12. Emperor Scorpions:

The emperor scorpion, with a lineage dating back 300 million years, is one of the most iconic and well-recognized members of the scorpion family. Native to the rainforests and savannas of West Africa, these scorpions are among the largest in the world, growing up to 8 inches in length. The emperor scorpion's black to dark blue body is robust and equipped with a large, imposing set of pincers and a venomous stinger, which they use primarily for defense and to subdue prey. Despite their menacing appearance, their venom is relatively mild to humans, making them a popular choice among exotic pet enthusiasts. What really sets the emperor scorpion apart from other modern scorpions is its very primitive body structure, which has remained largely unchanged throughout its evolutionary history. Emperor scorpions primarily feed on insects. Their hunting technique involves detecting prey through vibrations in the ground. Once detected, the prey is swiftly grabbed with their pincers and subdued with a sting if necessary.

11. Australian Ghost Shark:

The Australian ghost shark, also known as the elephant shark, casts a mysterious shadow in the deep waters off the coasts of Australia and New Zealand. This creature, which has swum the oceans for approximately 400 million years, belongs to a group of cartilaginous fishes that includes sharks and rays, but it stands out due to its unique evolutionary path. Ghost sharks are known for their distinctively large, elephant-like snouts which they use to detect electric fields generated by their prey. This ability allows them to hunt effectively in the murky depths where light is scarce. Their diet mainly consists of small invertebrates and fish, which they crush using their specially adapted, plate-like teeth. Despite their ancient lineage, ghost sharks are relatively small, usually reaching about 4 feet in length, and their bodies are more flexible and less robust compared to their shark relatives. This flexibility is likely an adaptation that has enabled their survival through various geological periods.

10. Echidnas:

Echidnas, or spiny anteaters, are one of the most extraordinary examples of ancient life that still roams the Earth. These creatures have been around for 110 million years, surviving the age of the dinosaurs and witnessing the rise and fall of countless species. Echidnas, along with the platypus, are the only surviving members of the monotremes—an ancient group of egg-laying mammals. These small, solitary animals are best known for their spiny coats, which provide protection from predators. Their diet consists primarily of ants and termites, which they consume using their long, sticky tongues. Echidnas are equipped with strong, clawed feet, making them excellent diggers. They use this skill not only to find food but also to burrow into the ground for safety. Echidnas have adapted to a variety of environments across Australia and New Guinea, from snowy mountains to deserts, showcasing their incredible adaptability.

9. Coelacanth:

Long thought to have gone extinct with the dinosaurs around 65 million years ago, this ancient fish astonished the scientific community when it was rediscovered alive in 1938 off the coast of South Africa. The discovery of the coelacanth, often referred to as a "living fossil," has provided unparalleled insights into the Earth's evolutionary past. Coelacanths are large, deep-sea creatures, reaching lengths of up to six feet and weighing as much as 200 pounds. They are known for their distinctive lobed fins, which move in a peculiar, limb-like motion that gives an insight into the transition of aquatic animals to land dwellers. Their bodies are covered in thick, scaly armor, which has changed little over millions of years, suggesting a highly successful adaptation strategy. What makes coelacanths particularly fascinating is their method of internal fertilization and live birth, a rare trait among fish.



Talking about fishes, you can also checkout our video on Top 10 Largest Fish Alive on Planet Earth.

8. Horseshoe Crab:

The horseshoe crab is another extraordinary survivor from the ancient world. With a lineage dating back over 450 million years, horseshoe crabs predate even the dinosaurs, making them one of the oldest living species on Earth. Their unique, helmet-shaped shells and long, spiked tails make them easily recognizable and a subject of fascination and study. These "living fossils" are more closely related to spiders and scorpions than to true crabs. They inhabit shallow ocean waters on soft, sandy or muddy bottoms where they feed on worms and other small invertebrates. Their blue blood, which contains copper-based hemocyanin to transport oxygen, is highly valuable to medical research, particularly because it contains substances that can detect bacterial endotoxins in medications. Horseshoe crabs undergo a fascinating breeding process each spring, when they migrate to beaches to lay their eggs in the sand, a sight that attracts various predators, including migratory birds that rely heavily on these eggs for nourishment.

7. Lamprey:

The lamprey, with its eerie, jawless mouth, resembles a creature from another era. Indeed, this fish is a survivor from ancient times, having existed for over 360 million years. Lampreys are distinctive for their tooth-lined, funnel-like sucking mouth, which they use to latch onto other fish to feed on their blood and body fluids. Lampreys are found in temperate regions across the globe, living in coastal and fresh waters. They have a complex lifecycle that includes a long larval stage, where they live buried in soft riverbeds, filter-feeding on microorganisms. This stage can last for several years before they metamorphose into the adult form known for its parasitic habits. Remarkably, after this transformation and a brief period of feeding, they reproduce once, then die shortly after spawning, fulfilling their role in the ecosystem. Their persistence through millions of years and massive planetary changes speaks to the lamprey's adaptability.

6. Cassowary:

The cassowary, often referred to as the world’s most dangerous bird, is a direct descendant of dinosaurs, with its ancestry providing a living snapshot of prehistoric times. Native to the tropical forests of New Guinea and northern Australia, these large, flightless birds are known for their striking appearance, which includes vibrant blue skin on their necks and heads, and a helmet-like casque atop their skulls. Cassowaries are solitary creatures, preferring to roam alone in their forest habitats. They are mainly frugivorous, meaning their diet mainly consists of fruit, which they play a crucial role in dispersing across the forest floor. Despite their colorful appearance, cassowaries are extremely shy and solitary, but they can become aggressive if threatened or cornered, especially during the breeding season. They are capable of delivering powerful kicks with their strong legs and sharp claws, which can be dangerous to other animals and humans alike.

5. Jellyfish:

Jellyfish are among the oldest living creatures on Earth, with fossils dating back over 500 million years. These mysterious beings are more than just their haunting, sticky forms and gentle, pulsing movements; they are survivors from the depths of time, predating even the dinosaurs. Jellyfish are found in oceans around the world, from surface waters to the deep sea. They are made up almost entirely of water, which gives them their translucent appearance. Their bodies are simple, lacking a brain, heart, and bones, but they are highly effective predators. They capture prey with tentacles that trail behind their bell-shaped bodies, which are equipped with nematocysts, or stinging cells, that paralyze fish and small invertebrates. The reproductive cycle of jellyfish is fascinating and complex, involving stages where they exist both as solitary individuals and part of a colonial organism, depending on their life stage.

4. Sturgeon:

Sturgeons are ancient fish that have been swimming in our rivers and lakes since the time of the dinosaurs, dating back to the Triassic period. These massive fish are known for their extended bodies, scaly texture, and distinctive bony scutes that provide protection. Sturgeons are some of the largest freshwater fish, with some species growing up to 12 feet long and weighing over a thousand pounds. Found predominantly in the temperate waters of Eurasia and North America, sturgeons have a slow growth rate and live long lives, some reaching over a century old. They play a crucial role in their aquatic ecosystems, feeding on a variety of small fish and invertebrates, which helps to keep these populations in check. Sturgeons are perhaps best known for their roe, or eggs, which are processed into caviar—a highly prized delicacy. This demand for caviar has led to overfishing and severe declines in many sturgeon populations, making conservation efforts critical.

3. Platypus:

The platypus, often considered one of the most unusual animals in the world, expresses a unique blend of traits that bridge mammals, birds, and reptiles. Native to eastern Australia, including Tasmania, this curious creature has been a subject of fascination and study due to its extensive characteristics, which paint a picture of evolutionary history spanning over 200 million years. What makes the platypus particularly remarkable is its method of reproduction. It is one of the few mammals that lay eggs instead of giving birth to live young. About 10 to 12 days after laying, the eggs hatch, and the mother nurses her young by secreting milk through specialized glands in her skin, as platypuses lack nipples. The platypus is also equipped with electroreceptors in its bill, allowing it to detect minute electrical signals emitted by the muscles and nerves of its prey. This ability is crucial for hunting underwater, where the platypus spends much of its time searching for food such as insects, larvae, and small crustaceans.

2. Chinese Giant Salamander:

The Chinese giant salamander, as its name suggests, is an imposing figure in the amphibian world. This salamander is the largest of its kind, with some individuals reaching nearly six feet in length. Native to the freshwater streams and lakes of China, this species is considered a living relic, reflecting a lineage that dates back millions of years. The giant salamander’s body is wrinkled and splotched, camouflaging it against the rocky riverbeds it inhabits. It is fully aquatic, breathing primarily through its skin due to the extensive network of tubes that cover its body. This adaptation is crucial for its survival in the oxygen-rich, cold waters of its habitat. Despite their size and resilience, Chinese giant salamanders face critical threats from habitat destruction and the illegal wildlife trade, where they are highly sought after for their meat and purported medicinal properties.

1. Goblin Shark:

The goblin shark is a rare and mysterious creature that resides in the depths of the ocean, earning it the nickname "living fossil" due to its primitive features that have remained unchanged for millions of years. Characterized by its distinctively long and flat snout, the goblin shark uses this unique appendage as a sensory organ to detect electric fields produced by other sea creatures. This ability is crucial in the pitch-black waters of the deep sea where it lives, often reaching depths of over 3,000 feet. The shark's jaw is also highly specialized; it can snap forward in a rapid motion to catch prey, a remarkable adaptation that allows it to feed on a variety of deep-sea fish and squid. The goblin shark’s body is flabby and its skin is a pale, ghostly pink due to its lack of pigmentation, a common trait among many deep-sea animals. Its liver is large and contains low-density oils and hydrocarbons, which help in resilience, allowing the shark to float effortlessly through the deep waters without expending much energy.

And that’s it for today. Thanks for watching. Don't forget to like, subscribe, and stay tuned for more captivating adventures from 4 ever green!