Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

All that remains of the Whittall mansion are the ruins of the formal garden and its pergola, dedicated to the late Matthew J. Whittall by his widow.

A beautiful and classically designed villa, with an hourly infestation of monsters.

Figures of unknown origin carved into the surfaces of underground caves.

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

This film studio and amusement park is considered one of the greatest filming locations in China.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

House used in the 1971 horror film "Let's Scare Jessica to Death."

The quaint little Vermont town played a quaint little Connecticut town in Tim Burton's "Beetlejuice."

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

The "Rocky Horror Picture Show" character has a hidden camera that broadcasts people doing the "Time Warp."

During this Shetland Islands celebration, hundreds of torch-carrying "guizers" lead a procession to burn a viking longboat.

A 600-year-old mini shrine guarded by a sword-wielding knight hides in a crumbling cliff face.

A medieval church built into an ancient cave.

Legendary site where an evil bishop was devoured by rodents.

A staircase made of gravestones leads up to this church built into a giant rock.

This floating sculpture of ice is a poignant reminder of nature's power.

A unique tribute to the millions of animals who served and died for the British military.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Ride the subways of yesteryear.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

Mysterious 500-year-old tapestries depict a unicorn hunt.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

The first and only carousel with a lineup entirely of insects.