Once the most densely populated place in the world, this island is now a ghost town.

This psychedelic tourist trap is a leisurely descent into madness.

Lifelike statue of the Chinese philosopher in the bathtub.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

This sensational Chinese temple walks visitors through the 76 weird departments of the afterlife.

Beijing's World Park offers the excitement of international sites without the travel.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

This small chapel is built of human bones and decorated with a golden skeleton.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

Morocco's Argania trees are infested with nut-hungry goats.

A Moroccan getaway in the mountain range that plays the Himalayas' stunt double.

A swing to dangle you off the very edge.

A dangling church built over a Colombian gorge.

A magical world of elves and fairies tucked amongst the trees in Colombia.

A park with one large cat sculpture and 15 smaller ones, all painted by different Colombian artists.

An explosion of natural color known as "the river that ran away from paradise."

Former drug lord’s manor, now a theme park. Watch out for the hippos.

Cathedral carved out of salt, located a mile below the earth's surface.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

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

White llama terraces dazzle in Peru's "other Machu Picchu."

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.