A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

This giant temperature attraction created some giant electric bills.

The final resting place of a space program monolith.

The creator of the carousel's bingo-pinball hybrid survives in California's oldest gaming establishment.

Mysterious meeting place for UFO hunters near Area 51.

These huge stone ovens in the desert fueled the Nevada silver boom, and may have also been a hideout for outlaws.

This massive crater in the middle of nowhere was used to train astronauts for moon landings.

An eatery for UFO seekers on the Extraterrestrial Highway.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

Formerly frequented by Hollywood stars and now open for tours.

A land of debatable treasure.

This former Mormon settlement is reemerging from the receding waters of Lake Mead.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

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

The most magnificent bottle house in a town strangely full of them.

Water of undetermined depth has attracted rare fish and cult leaders alike.

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

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A memorial to the unknown and unheralded men and women of the Cold War military and intelligence services.

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

The air force base preserves its scars from the Japanese attack on Pearl Harbor.