Scattered around Atlanta are little doors with big charm.

Bad farming practices caused this unnatural natural wonder.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

The beauty of urban decay, hiding some dark secrets.

This quirky curiosity shop takes its cues from the world's bazaars.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Tour the sci-fi-esque reality of governmental disease management.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

Human skulls and a stuffed goat made into a rocking chair can be found at this strange little store.

Hundreds of skulls and bones at the largest skeleton museum in the country.

An underwater city for the dead.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The celebrated eyesore created by starry-eyed sweethearts.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

Florida castle built with aluminum printing plates.

Hidden beneath the streets of London is a secret subway that only carried mail.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.