The Detlev-Rohwedder-Haus (Detlev Rohwedder House) is a building in Berlin that at the time of its construction was the largest office building in Europe. It was constructed between February 1935 and August 1936 to house the German Ministry of Aviation (Reichsluftfahrtministerium, or RLM), headed by Hermann Goering, a prominent Nazi. During the German Democratic Republic (East Germany) it was known as the Haus der Ministerien ("House of Ministries").