Berlin's oldest surviving academic architecture hosted decades of animal dissections.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

A 12th-century fortress containing some of Berlin's oldest buildings.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

A surreal museum of extraordinary industrial objects.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

This small chapel is built of human bones and decorated with a golden skeleton.

This star-shaped military outpost is now simply trying to protect itself from neglect.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

Abandoned waterpark turned counter-culture mecca.

This chest hospital with a dark, haunted past serves as a fitting set for horror films and a paradise for ghost hunters.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

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

A unique seaside cave where Aleister Crowley faked his own death.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

A small Portuguese cottage formed between boulders in the countryside.

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

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

A submerged village appears when dam levels drop.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.