Mythological depictions of Laos’ national animal make this cave sacred.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

A natural swimming hole that was once a ceremonial center for Mayan priests.

A massive forgotten storehouse from 1913 on the Brooklyn Waterfront has a spectacular view of Brooklyn.

An abandoned coal mine reached by a steep hike.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

This abandoned amusement park was built on a site with a dark history.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This tiny man looms large over downtown Charleston.

A 10-foot-tall concrete Alley Oop statue left over from World War II now stands on the side of the road.

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

The quarry was abandoned over 100 years ago, after a massive ammunition explosion ended in tragedy.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.