It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

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

Like Stonehenge, but with boats and oodles more charm.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

Erosion and time have created a naturally-formed water park.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Contemporary art inspired by natural history and science drawing on ancient techniques in a modern world.

Shop selling 500 flavors of soda has something for everyone.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Go inside to really appreciate this 500-year-old technological masterpiece.

A museum celebrating the Victorian obsession with hair art.

Impossibly life-like natural history models created out of glass by a father and son.

An enormous, inside-out glass globe built in 1935.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

An eccentric inventor's castle home with its own indoor weather system.