The ghost town that ended up on Ebay.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

A Saint Nicholas-themed ghost town in the Mojave desert.

This giant temperature attraction created some giant electric bills.

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

"Only the devil could play golf here."

This golf ball–shaped former desert real estate office now houses a UFO museum.

A museum celebrating the self-taught artist-environment builder.

A tree grown from astronaut seeds which were exposed to cosmic rays.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

Jean Tinguely's bizarre monster sculpture is hidden deep in a forest.

More than 140 granite sculptures decorate the lawn of this French sculptor.

Beautiful carved tunnels.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

Miles of man-made caves and tunnels are currently used for cultivating mushrooms.

Folklore and history carved into Brittany's coast.

Figures of unknown origin carved into the surfaces of underground caves.