Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

What is the Thing?

Mysterious meeting place for UFO hunters near Area 51.

This sign designates the road that leads to the infamous Area 51.

The narrow mountain road that carves a path between Florence and Victor is tied to ghost towns and ghost stories.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

This otherworldly church spire reaches up toward the heavens.

Famous church recognized for both its unique design and disciplined monks that live according to the Benedictine discipline.

European castle ruins in an American state park are actually the product of death and grief.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

The crumbling remains of the first Black-owned and operated hospital in Kansas City.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The largest self-built castle in the U.S., six decades in the making.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

A blacklight journey through a celestial art exhibit.

A museum dedicated to the alleged Roswell Incident.

An eatery for UFO seekers on the Extraterrestrial Highway.

This recently restored timepiece has stood all around Kansas City.

An abandoned concrete jungle surrounded by a lush park.

A remarkably opulent mansion with a tragic history.

This historic cliffside mansion uses a natural cave for air conditioning.

This abandoned prison castle has become an imposing gallery of graffiti art.