The world's largest collection of witchcraft regalia.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Macabre astrological automaton clock dating to the late 1400s.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Remnants of a storybook amusement park hidden behind a strip mall.

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

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Dramatic river bend surrounds a natural red-rocked pedestal.

A one-of-a-kind collection of a unique medium.

A 16th-century horror show built in a lovely Italian garden.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

The legendary building that needed ghostly approval before being built.

Tucked in the back of this amazing antique store is an important piece of medical history.

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

An eerie, derelict amusement park in Berlin.

A massive underwater sinkhole made famous by Jacques Cousteau.

The fairy tale castle of the "fairy-tale king."

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

A bizarre house filled with an astounding array of collections.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A toxic ghost town sitting atop a massive coal fire.