What is Barbarastollen underground archive?
{{no sources|date=July 2018}} [[File:Distinctive emblem for cultural property under special protection.svg|thumb|Emblem for cultural property under special protection]] The '''Barbarastollen underground archive''' is an underground [[archive]] for preserve [[Germany]]’s cultural heritage. The Barbarastollen is in a mine near [[Freiburg im Breisgau]], [[Baden-Württemberg]], [[Germany]]. It holds [[microfilm]]s with about 900 million images from German archives and museums. Among the documents stored here are: * treaty text of the [[Peace of Westphalia]] * [[Bull]] by [[Pope Leo X]] threatening [[Martin Luther]] with excommunication * coronation document of [[Otto I the Great|Otto I]] * documents of [[Johann Wolfgang von Goethe]] * original building plans for the [[Cologne Cathedral]]. The Barbarastollen tunnel is the only cultural property in Germany under the protection of the [[Hague Convention]] of [[UNESCO]]. 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. [[Category:Archives]] [[Category:Baden-Württemberg]] {{europe-stub}}