The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

Bad farming practices caused this unnatural natural wonder.

Ruins of a Carnegie family mansion on Cumberland Island.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

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

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

A music-filled, booze-soaked oasis in the desert.

The most isolated mailbox in America lets desert travelers record their passing.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

Semi-recognized center of the world, with many oddities.

The sun acts as a key that only fits this giant keyhole twice a year.

This unique sanctuary invites you to interact with the beautiful birds.

A private home built to resemble the shape of a microscopic creature.

360-degree virtual reality chamber physically immerses scientists into their data.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

A garden oasis filled with flowers mentioned in the works of William Shakespeare.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.

This peaceful garden is hidden on the grounds of a spiritual organization founded by a pioneer yogi.

The rusting remains of the largest assembled WWII fleet on the West Coast.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

Gorgeous purple flowers drape from the world's largest blossoming plant.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."