Government bunker of Germany

The Government Bunker (Regierungsbunker) in Germany, officially named Ausweichsitz der Verfassungsorgane des Bundes im Krisen- und Verteidigungsfall zur Wahrung von deren Funktionstüchtigkeit [AdVB] (Emergency Seat of the Federal Constitutional Organs in the event of Crisis or Defense Situations to maintain their Ability to Function) was a massive underground complex designed to house the German government, parliament and all federal personnel needed to keep the government working in the event of war or severe crisis. Located only about 25 km south of Bonn, Germany (the capital and government seat of pre-unification West Germany), in the Ahr Valley between the towns of Ahrweiler and Dernau, it was one of the best kept secrets of West Germany. It was built between 1960 and 1972 inside two abandoned railway tunnels, maintained and kept in a working condition for about 30 years and decommissioned in 1997. A small part of the once-secret site is now open to the public as Government Bunker Documentation Site, while the vast majority is abandoned and sealed.