Here's where the West German political elite was planning to spend nuclear winter, drinking Martinis and having toga parties after armageddon, waiting to see who emerged victorious from a worldwide thermonuclear war: a gigantic nuclear bunker with 17 kilometers of tunnels equipped with all kinds of commodities.
Judging from the huge subterranean structure's facilities, filled with a mixture of grey machinery and bright 60s designer decor, they planned to spend the long time after absolute destruction in style. They had it all: lounges, emergency broadcast station, laundromats, dental care and even hairdresses (for the upcoming giant rat Earth overlords, I guess.)
The $4-billion Cold War monstrosity has just been declassified by the German government. Hopefully, they will reconvert it to a Halo 3 playground. [Der Spiegel]