A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

This Byzantine Church was moved from Paris to Athens block by block.

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.

After a catastrophic forest fire, a Greek artist transformed scorched tree trunks outside an old sanatorium into this haunting sculpture garden.

This small chapel holds the mummified heart of one of the heroes of the Greek Revolution.

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

This small museum once served as a royal hunting pavilion for King Otto Friedrich Ludwig.

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Travel deep inside of Europe's second largest glacier in the world's largest man-made ice cave.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

The largest whale museum in Europe allows visitors to walk among life-size giants.

A trio of hidden hot tubs takes advantage of Iceland's natural geothermal vents.

The Icelandic Sea Monster Museum explores the area's history of aquatic cryptid sightings.

Climb right into the heart of this colorful Iceland volcano.

This modern monument to pagan belief looks like it was transported straight from ancient times.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Rising from the sea like a stone monster.