Staves, storm-calling, and of course, necropants.

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

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The world's largest collection of witchcraft regalia.

The ghostly remains of an accidental sea.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

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

A snapshot of the city's fascinating voodoo culture.

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

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

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

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

The legendary building that needed ghostly approval before being built.

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

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

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

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

A crumbling hospital from the 1850s on Roosevelt Island.

A church of bones, decorated with 40,000 human skeletons.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

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

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