The legendary building that needed ghostly approval before being built.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

An eerie, derelict amusement park in Berlin.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A kaleidoscopic warehouse-maze of handmade neon signs.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A psychedelic labyrinth on the San Francisco bay.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A former taxidermist has turned his old shop into a folk art mecca.

Bad farming practices caused this unnatural natural wonder.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

Gutted airplanes slowly decay in a Florida field.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The oldest house of worship in Palm Beach has a wonderful tropical garden.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

This railroad and oil tycoon's lavish estate now stands as a time capsule of the Gilded Age.

This salad has two key ingredients: hearts of palm and green ice cream.

This shop also boasts some sweet memorabilia from "Willy Wonka and the Chocolate Factory."

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

This general store is stocked with memorabilia from the 1930s onward—almost none of it for sale.

These mysterious ruins are hidden amid this sleepy coastal city.

Mariners once used this prehistoric landfill as a navigational landmark.