Visit Europe's largest subterranean waterfall, carved by water from the glaciers of the towering peaks surrounding the valley.

This demon atop the Notre-Dame de Paris looks utterly bored.

A mysterious sculpture is hidden in Vancouver's Stanley Park.

Sloth rehabilitation center in the jungle of Costa Rica.

This sparsely populated town offers a look back in time.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A pilgrimage around a forbidden peak sacred to four faiths.

This remote Himalayan temple is in danger of being completely washed away by a melting glacier.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

One-of-a-kind stupa in Laos.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

Hindu temple of the dead home to hundreds of long-tailed macaques.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

A sprawling collection of over 106,000 toys from around the world.

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

A natural formation that resembles a camel resting in the New Mexico desert.

This ranch on the banks of the Rio Grande is home to a little-known LGBTQ history of Mary Cabot Wheelwright, Marie Chabot, and two-spirit Navajo weaver Hastiin Klah.

This popular pilgrimage site offers a hole filled with holy healing dirt.