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

This mining town boomed in the Atomic Age when uranium was gold, only to be abandoned when the industry collapsed.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

Replica of an old Esso filling station, complete with Wayne gravity pump and outhouse.

This vast kitty-themed collection illustrates the history of human-cat interaction.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

All that's left of the quintessential "cabin in the woods."

A forensic lab dedicated to fighting crimes against wildlife.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Magical-looking cottages that inspired one of the most famous animated films ever.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

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

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A huge musical instrument played by the ocean.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

Shaped like a big top tent, this memorial honors the victims of a terrible train wreck.

A stockpile of childhood lunch pails turned collectibles.

A former taxidermist has turned his old shop into a folk art mecca.