The Berlin Document Center (BDC) was created in Berlin, Germany, after the end of World War II. Its task was to centralize the collection of documents from the time of Nazism, which were needed for the preparation of the Nuremberg Trials against war criminals. The BDC was under American administration until 1994, when the German Federal Archives (Bundesarchiv) was allowed to take control of the BDC.

More information on the Wikipedia page [1]

See also Berlin State Library, Berlin Central and Regional Library and Berlin City Library