In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Seattle's own bad art museum located inside Cafe Racer.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

Private collection of art inspired by cabinets of curiosity.

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

A museum dedicated to the alleged Roswell Incident.

One person's lost luggage is another person's treasure.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Where manatees are the snowbird vacationers in these balmy Florida springs.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

A self-built castle made by a mysterious man.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A castle that was built stone by stone by an eccentric journalist.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

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

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

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

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

A museum dedicated to the history and exploration of both popular music and science fiction.