Führer Headquarters
There were no official Führer Headquarters before World War II because Hitler used either existing military complexes, or mobile facilities close to the battle lines. Under plans developed by Martin Bormann and architectural designs by Speer, a series of Führer complexes were built. The best known were: the Führerbunker in Berlin; the Berghof complex in Berchtesgaden, Bavaria; and the Wolfsschanze near Kętrzyn in modern-day Poland.