The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Wander around the extensive remains of this 12th-century medieval church.

The remains of a 13th-century Franciscan friary have survived multiple attempts at destruction, most recently in 1921.

Site of one of World War I's most horrific scenes.

Science fiction's grandfather has a fittingly marvelous tomb.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

This German bone house contains the remains of some 20,000 souls.

A graveyard and memorial chapel for victims of leprosy.

The “Sistine Chapel” of the Middle Ages merges 11th-century science and religion in wondrous hues.

A burial vault located under Tiber Island in the middle of the Italian capital.

The naturally mummified body of a peasant girl saint.

The final resting place of the great navigator, or maybe his brother.

The huge golden reliquary of a testicle-smashing saint.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

Tucked away in a small German apartment is an eclectic museum devoted to West African vodun culture.

Fascinating town where normal life interfaces with the occult.

This unique Renaissance castle was turned into a home for Nazi occultism.

A 17th-century doorway in a small Sabine village is a portal into the mysteries of alchemy.

A medieval house with mysterious alchemical inscriptions on its facade

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

An alchemist's "magic door" stands in the middle of a Roman park.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.