These fantastically named natural pools look like something out of a Scottish myth.

Medical and zoological curiosities for sale.

The only theatre in the world constructed specifically for sound movement.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

A psychedelic labyrinth on the San Francisco bay.

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

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

The world's largest collection of witchcraft regalia.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Hot springs monkey spa in the middle of Hell's Valley.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

The legendary building that needed ghostly approval before being built.

Hidden beneath the streets of London is a secret subway that only carried mail.

A bizarre house filled with an astounding array of collections.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The sign at the garden gate reads: "These Plants Can Kill."

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

Most-visited and most-photographed slot canyon in the American Southwest.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.