These aggressively sustainable art homes look like something out of 1970's science fiction.

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

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

The striking and little-touristed ruins of an ancient city destroyed and rebuilt by the Aztecs.

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

This sculpture perfectly models the molecular structure of a drug that was never produced.

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

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

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

The oldest continuously occupied public building in the United States.

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

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Largest graveyard in all of Japan surrounds a famous mausoleum.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

One of the world's largest tanks mimics the experience of watching rare whale sharks, giant rays, and deep sea creatures from the ocean floor.

A monument to the two U.S. officers killed by North Korean troops while trying to trim a poplar tree.

South Korea's largely symbolic, barely used gateway to the North.

The site of many tense prisoner exchanges across the Military Demarcation Line between North and South Korea.

Home to more than 13,000 pieces of war memorabilia and military equipment.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.