Colorful Native American paintings are hidden within this small cavern.

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

Despite many attempts to finish this overpass, it has been abandoned since the 1970s.

It's estimated that half of the world's gold was mined from South Africa's "golden arc."

Caves that can't seem to quit producing the remains of prehistoric humans.

Home to some of the oldest hominid fossils ever found.

Legends surround this jagged rock formation in the New Mexico desert.

Museum dedicated to the largest battleship ever built.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

Peace Park and the Atomic Bomb Dome.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

The 10,000 Torii shrine.

Once a black market electronics marketplace, now an otaku shopper's paradise.

The original "capsule building" is a masterpiece of Metabolist architecture.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

Not quite the menace it once was, this monster still has some chops.

An abandoned airport in the middle of nowhere.

A remote crossroads honoring a fallen talent.

Quite simply the largest tree in the world (by volume).

Oregon's unexpected high desert, displaying layers of time in a colorful show.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.