Maybach I and II

Called the Reich Post Building (German: Reichspostgebäude), it could be accessed by light trucks, directly above the extension with a stairwell and an elevator.

[4] The complex consisted of twelve three-storey buildings above ground designed to look from the air like local housing,[5] and two floors of interlinked bunkers with two-foot thick walls below.

Incriminating evidence left by the conspirators of the 20 July plot against Hitler was discovered at Maybach II in a safe at Zossen.

Among the documents reportedly uncovered were excerpts from the diary of Wilhelm Canaris, conspiratorial correspondence between Abwehr agents, information on the secret negotiations between the Vatican and members of the originally planned coup d’état of 1938, the Oster conspiracy, and data on the resistance activities of Lutheran minister Dietrich Bonhoeffer.

[8] During 1945 the site was heavily bombed both by the British and by the Americans; a raid on 15 March injured the Chief of the Army General Staff, Hans Krebs.

Further bunker installations were subsequently added to house the central command and communications functions of the Soviet Army in the GDR.