These Videos Take You Inside The World's Spookiest Underground Cities

You don't have to bring your own flashlight to take a tour of the cities that humans have built underground. Just lean back and let these videos unlock all of their subterranean secrets. » 3/20/15 3:00pm 3/20/15 3:00pm

9 Extraordinary Underground Cities

Humans like to build cities that reach for the sky, but sometimes they also build downward. Whether for protection, or just because they can, we've created many cities beneath the Earth's crust - or dug deep into the rocky faces of mountains. Here are nine of the most awesome. » 1/01/14 11:31am 1/01/14 11:31am

The underground city has thrown open its doors to the surface

At night, when we are safe from solar storms, the guards open our radiation-shielded gates. We are so used to living in darkness that the moonlight comes on like a tsunami, an uncontrollable riot of waves. It's as if we are drowning in light, rather than illuminated by it. » 8/16/13 5:10pm 8/16/13 5:10pm

10 Mysterious Underground Cities

Humans like to build cities that reach for the sky, but sometimes they also build downward. Whether for protection, or just because they can, we've created many cities beneath the Earth's crust - or dug deep into the rocky faces of mountains. Here are ten of the most awesome. » 3/29/11 11:00am 3/29/11 11:00am

5 haunting subterranean structures from around the globe

Even if you've been to the Catacombs of Paris or have gone spelunking in Brooklyn's abandoned subway lines, there's still a wealth of underground places to be explored. Here are some of the world's less welcoming manmade tunnels and grottos. » 2/26/11 3:45pm 2/26/11 3:45pm

An underground city in France where people have lived for thousands of…

The Barry Troglodyte Village is a small complex of homes build undeground in the south of France. Though underground homes are unusual, that's not the weirdest part about this place. These subterranean houses have been occupied continuously by people for thousands of years - from the neolithic era of roving tribes,… » 2/17/11 7:30am 2/17/11 7:30am

Subterranean Slaves Of Amsterdam

A Dutch company wants to build a massive underground city beneath Amsterdam, going six stories below the space-challenged city. Strukton, owned by the Dutch railway, wants to drain Amsterdam's canals one by one and then refill them with water after it builds its enormous troglodyte structure. The "web-like complex"… » 1/29/08 10:40am 1/29/08 10:40am