A collection of grotesques lines the walls of this Italian villa.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

The tomb of history's greatest potato promoter is surrounded by tubers.

A museum of carnival attractions where you are invited to ride the rides.

The final resting place of the "father of special effects."

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

How did a French journalist’s grave become the sexiest statue in the cemetery?

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

This little-known relic crypt holds stolen parts of a Roman Empress.

A museum of magic with a Sadist past.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.