An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

France's most famous cemetery, with some of its most curious tombs.

A layered tribute to the work of mosaicist Isaiah Zagar.

The only theatre in the world constructed specifically for sound movement.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Site of a former hidden treehouse in New Orleans.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Notorious artist squat renovated into legal studios.

An enormous, inside-out glass globe built in 1935.

The world's only museum devoted to the wonders of fluorescence.

Staves, storm-calling, and of course, necropants.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Medicinal spa created with the discharge from a geothermal energy plant.

An artsy hidden staircase leads to breathtaking views of San Francisco.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Most-visited and most-photographed slot canyon in the American Southwest.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.