The Zeughaus is the oldest building on Unter den Linden avenue. From 1731 to 1876 it was used as an arsenal by the Prussian military. From 1952 to 1990 the "Museum for German History," founded by the Central Committee of the SED (Socialist Unity Party), was located here. In 1990, it became part of the German Historical Museum.
German Historical Museum
The Deutsches Historisches Museum is a fantastic museum. It has 10,000 square meters of exhibition space on the three floors. The exhibits trace German history back to pre-Roman times until the present.