The Barbarastollen underground archive is an underground archive intended to preserve Germany’s cultural heritage from man-made or natural disaster. The Barbarastollen is located in a disused mine near Freiburg im Breisgau, Baden-Württemberg, Germany. It holds microfilms with about 900 million images from German archives and museums.
The Barbarastollen tunnel is protected by the Hague Convention for the Protection of Cultural Property in the Event of Armed Conflict of UNESCO. It is a "refuge intended to shelter, in the event of armed conflict, the movable cultural property" according to article 1 sub-paragraph b. It is furthermore the only cultural property in Germany under special protection according to Chapter II of the convention, and one of only five such sites worldwide, the others being the Vatican City and three refuges in the Netherlands. It is named after Saint Barbara. The entire complex is buried under 400 meters of rock. It is intended to survive a nuclear war. It is estimated that its contents should survive for at least 500 years without any serious damage.
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