A subterranean shelter remains intact under a busy Paris railway station.

The site of America's first commercial oil well essentially disappeared after the town went bust.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

This dramatic rail curve was once the target of a failed Nazi attack.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

It would take 35 firetrucks to fill this enormous glacial pothole.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.