Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Odd outsider art installations surround a Gold Rush-era ghost town.

A hip bar decorated with walls of golden skulls.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

A beautiful geyser under environmental threat.

This abandoned amusement park was built on a site with a dark history.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The first declared National Monument in the United States.

A beautiful 62-acre Catholic shrine and botanical garden.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The site of the climactic scene from the classic horror film is now a historic landmark.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Eighteen miniature death-scene dioramas.

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

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Mysterious rocks that ring musically when struck.

Where America's first doomsday cult awaited the end of the world.

Home of an evil witch famous within southern folklore.

Continuing the tradition of the dime museum in style.

A beautiful Victorian-era cemetery, complete with a miniature village.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.