The quintessential Japanese rock garden has existed for more than 500 years.

One of the most horrible legacies of the Cold War is a site where the Soviet Union tested nuclear bombs on civilians.

Thousands of well-dressed mummies below a monastery.

The rusting hulk of a hand-powered, nearly 160-year-old submarine abandoned in 1869 due to the ravages of decompression sickness.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

5,000 skulls in memorial to those killed by the Khmer Rouge.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

The internet as provided by a James Bond villain.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

The cell which saved the life of Ludger Sylbaris, "the man who lived through Doomsday."

Renaissance villa and gardens complete with a tormented colossus.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

A city built from mud and known as the "Manhattan of the desert."

A vinyl-lover's Shangri-La.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

The largest 19th century panorama in the world still in-situ.

Each year melting snow turns these Austrian hiking trails into scuba zones.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

The inscribed stone at Kilnasaggart is a remnant from nearly a millennium ago.

Gigantic water vessel, permanently grounded in Southern Albania.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

The deepest metro station in the world.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

This massive subterranean fissure is known as the "underground Grand Canyon."