A cave 150 feet beneath Kansas City is the perfect climate for growing 10,000 delicate orchids.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Less a museum than a bizarre fantasy world created by artists and engineers.

New Orleans' famous cemetery, located on the site of a former race track.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

The anatomical-pathological collection of a man who changed surgery.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Turning night into day in Victorian-era Austin to thwart a serial killer.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

One part antique store, one part curiosities hodge-podge.

Continuing the tradition of the dime museum in style.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.