This small Bavarian graveyard is filled with empty graves for German soldiers lost during the World Wars.

Terrifying derelict military hospital once housed a recuperating Hitler.

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

What was to be the world's most secure Cold War document vault ended up as just a few shallow caves.

Austria's very first and only nuclear power station was completed but never used.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This attraction was abandoned after the Chernobyl disaster.

The prototype for all Nazi concentration camps.

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

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

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

One of the world's most complex timepieces.