A giant Troll lurks under one of Seattle's oldest bridges.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

Possibly the world's only drive-in movie theater with an attached motel.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

The Japanese mayo factory famous for its cute mascot.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

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

This East German military command bunker was ready for World War III.

Come stay at a live-in art installation.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

A cave's rare beauty held a cavernous secret hidden underground.

In the middle of a desert subdivision, there is supposedly an impact crater site from Kcymaerxthaereal times.

The world's first commercial spaceport is a disappointment of cosmic proportions.

Buried beneath the New Mexico sands are believed to be millions of copies of Atari's E.T. video game.

Deadly airliner crash preserved for those willing to climb and pay respects.

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

The television series' iconic giant foot was borrowed from this classical painting.

This conical hill was built as a testing ground for an engineer known as the Glider King.

A modernist landscape of water and sci-fi concrete.

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