Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

The Goose Girl of Göttingen, Germany might well be the most kissed girl in the world.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

This 13th century castle is chock full of ghosts and impossibly rare cows.

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

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

Could this grave be the true resting place of legendary gunfighter "Doc" Holliday? Unclear.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A Muppet museum in small-town Mississippi honors the roots of Jim Henson's most beloved creation.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

An underwater city for the dead.

The strange behavior of a tween led to allegations of witchcraft and a curse being placed on anybody within earshot.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Protecting the dead from opportunistic body snatchers.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

The plague quarantine island home to the alleged "Vampire of Venice."