This conical hill was built as a testing ground for an engineer known as the Glider King.

This former steel and coal plant is now a neon-lit industrial fantasia.

Berlin's old airport.

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

When German-Iraqi relations broke down, this embassy was vacated post haste.

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

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

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

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

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

Super-heavy Nazi architectural experiment.

No need to strap in for a "ride" on this walkable roller coaster.

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

The prototype for all Nazi concentration camps.

A stairway to heaven, or to nowhere at all.

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

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

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

An intricate and amazing house built by architect Karl Junker.

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

Terrifying derelict military hospital once housed a recuperating Hitler.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.