The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

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

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

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

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

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

A swing to dangle you off the very edge.

A crumbling hospital from the 1850s on Roosevelt Island.

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

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Medicinal spa created with the discharge from a geothermal energy plant.

World's largest collection of serial killer artwork and other macabre exhibits.

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

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

World's first "penitentiary," meant to be humane, drove men insane.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

A magical place that lets you play in and explore the world of Studio Ghibli.

On Japan's Tashirojima Island, cats are king.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.