An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

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

Thousands of well-dressed mummies below a monastery.

Folky pharmaceuticals abound in this medicinal reliquary.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

A diverse collection of wax, bone, papier-maché and mummified relics.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Statue of a decomposing prince that once held his heart in its hand.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

Macabre museum devoted to historical Viennese murders.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

The only gulag ever to exist in socialist Yugoslavia.

Ever hear of the Milazzo Cage?

The location of the last witch trials of Italy, known as "The Salem of Europe."

Museum preserving torture methods from the past.