Odd outsider art installations surround a Gold Rush-era ghost town.

A brothel nestled amongst ghost towns, with an abandoned plane wreck to greet you.

This small town was built around a marble quarry and named after one of the most famous sources of marble in the world.

Experience a charming 1930's version of "infotainment."

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Where decommissioned airplanes and helicopters go to become part of Hollywood.

A UFO scrapyard in the California desert.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

One of the last free public hot springs is decorated with hippie art.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

A B-17 bomber stands as a memorial to the residents of Tulare County who served in World War II.

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

A water tower shaped like a giant coffee pot looms over a small Swedish village in Central California.

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

A short hike into the mountainside forest reveals a decaying 1890s town.

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

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

The first park built over a freeway is a brutalist masterwork.

A wall of chewing gum moonlights as collective art.

This working class sculpture pounds his hammer all the livelong day.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.