A popular tourist cave with a dark past.

Frida Kahlo's childhood home, now a museum of her life and works.

Extraordinary sculpture garden created by an eccentric English poet.

This former lieutenant governor's home is brimming with curiosities.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

Intensely colorful calcite pools in Southern China.

This classic restaurant features a gorgeous mirror-clad room.

A kaleidoscopic warehouse-maze of handmade neon signs.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

At this unusual park, domes, ladders, chairs, and more are made from trees.

A historic house left in "dramatic still life."

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

An unreal vintage shop that wears its dadaist influence on its zombie fish.

Canyon walls shrouded in ferns.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

Delightful disarray of found objects and clutter.

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

An emporium for the weird, creepy, rare, and just plain gross.

Living trees form the structure of an open-air palace.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

Go through the looking glass in Tokyo's Wonderland-themed shop.

Wonderland replication in progress by one persistent man.