A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

The longest burning light bulb in the world.

San Francisco Bay's ghost town.

A popular tourist cave with a dark past.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

An eatery for UFO seekers on the Extraterrestrial Highway.

Mysterious meeting place for UFO hunters near Area 51.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

Semi-recognized center of the world, with many oddities.

Ancient human, animal, and geometric figures drawn in the earth.

Marta Becket's hand-painted theater in the desert.

A hand-built folk art installation covered with messages of God's love.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

This historic tower in the California desert promises visitors a "vortex of good vibes".

The ghost town that ended up on Ebay.

The ghostly remains of an accidental sea.

A former utopian healing center created by a huckster and built by derelicts.

A museum dedicated to a sea that should have never been.

World's largest collection devoted to one fruit.

Along a California highway is a kind of Jurassic Park made of metal.

One of the most unusual geological features, recognizable from a dozen hit movies.

North America's largest accredited model railroad museum.

A regular looking rock with an unbelievable history.