Lavish royal estate punctuated with heated greenhouses.

Theme park featuring miniature replicas of European monuments.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

Climb inside an iron crystal magnified 165 billion times its normal size.

A little sculpture with a large wardrobe.

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