A geological mystery on Camelback Mountain.

One of the largest, oldest, darkest, quietest motel rooms in the world.

A regular looking rock with an unbelievable history.

A wall of chewing gum moonlights as collective art.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

The highest point in Washington state is a volcano covered in glaciers.

This metallic stampede sits frozen on a Washington ridge yet the artist's vision is still incomplete.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

Ming Dynasty necropolis raided during the Cultural Revolution.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A small, but award-winning beach known for its literally spotless reputation.

One of the first big sculptures anywhere in Australia.

Tubing through a cave lit with glowworms is a magical underground experience.

Enormous burial mounds of ancient emperors.

A beautiful opera house in the heart of Amazonia has recently restarted performances after a 90-year hiatus.

This striking, two-toned confluence of rivers is visible from space.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.