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

This 600-year-old home seems to defy physics.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

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

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

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.

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

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

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

The prototype for all Nazi concentration camps.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

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

Floating swimming pool within a moored vessel.

Terrifying derelict military hospital once housed a recuperating Hitler.

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

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

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

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

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

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

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

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.