This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

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

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

Over 300 taxidermied animals in a Californian restaurant make for a taxidermist's dream and an animal lover's nightmare.

Waterway populated with abandoned projects, including a submarine.

This historic estate on the east shore of Lake Tahoe was home to an eccentric millionaire (and his pet elephant, Mingo).

One woman's Viking Castle on Lake Tahoe.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.

A watering hole where the options for seating include a bar, patio, or subterranean cave.

The oldest orange tree in California spawned a generation of citrus farmers.

The modest home of the very immodest dancer who cost a king his crown.

An abandoned lot littered with concrete debris was once the home of the world's first female railroad president.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

This central Nevada cave is the spiritual home of ancient and enigmatic pictographs.

Singing sand that stands as the final remains of an ancient lake.

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

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

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.