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.Among the documents stored here in microfilm facsimile are:
treaty text of the Peace of Westphalia
Bull by Pope Leo X threatening Martin Luther with excommunication
Wikipedia https://en.wikipedia.org/wiki/Barbarastollen_underground_archive
Coordinates 47°55'15.66" N 7°55'46.611" E
