These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

Small caves once used as a hiding place for some of those accused during the Salem Witch Trials.

This sprawling woodland estate was the brainchild of iconic American industrial designer Russel Wright.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Books you don’t need in a place you can’t find.

The notorious pirate William Kidd might have buried his treasure around this local pond.

A mysterious collection of stones stand outside a small New England town.

Home to the Titanic Historical Society's collection.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

This decrepit abandoned building is made all the more eerie by its dark history.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Designed as a place for patients to take in the scenery, this tower has a dark history.

A man used his Civil War-era fortune to build this sanctuary in memory of his wife.

The mosaic Star of David at the front of this store hints that it's no ordinary Italian grocer.

Some of New York's best tacos can be found in the back of an unassuming bodega in Queens.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

The traditional houses along the coast of this charming Japanese fishing village allow people to sleep above the sea.

Established over a thousand years ago, this family-run teahouse continues to serve skewers of sweet rice cake to this day.

This was once the center of the Birdman cult, and is now a World Heritage Site.

A homemade anatomical collection of medical anomalies and accidental catastrophes.

This attraction was abandoned after the Chernobyl disaster.

A nightly tradition fills the streets of Flogsta with a collective scream.