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

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

These 18th century gardens tell a rocky story of the son of Odysseus.

The "Prussian Versailles" that is as glorious today as when it was built.

Where once there was a train station bathroom, there is now this German burger joint.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

A striking 12th-century-style castle built on the edge of a cliff.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

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

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

The patron saint of spinsters grasps a container of dried blood.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

This historic stone bridge has an entire neighborhood clinging to its sides.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

"The most colorful grottoes of the world.

Living trees form the structure of an open-air palace.

A small but immensely extravagant palace built by the "Night King."

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.

An existential riddle in the world's largest ancient castle.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

An enormous and lavish Gothic church in Czechia.