Adlerhorst, Military command bunker in Langenhain-Ziegenberg, Germany.

Adlerhorst was a World War II bunker complex near Langenhain-Ziegenberg, Wiesental and Kransberg in Hesse. Its core was seven buildings in Wiesental, each a concrete air-raid bunker with 0.91 m thick walls disguised as a half-timbered cottage with dormer windows, flower baskets and a tiled roof. Inside were oak floors, pine panelling and leather furniture. Ziegenberg and Kransberg castles also belonged to the complex.

Construction began in 1939 under the direction of Albert Speer, and the facility was primarily used between 1944 and 1945. It served as a command center for military operations during those final war years.

The seven buildings in Wiesental were disguised as half-timbered cottages, with dormer windows, flower baskets and tiled roofs, while their walls were 0.91 m of concrete. Inside they had oak floors, pine panelling and deer antlers. Locals were told the works belonged to the air-defence zone of Bad Münstereifel. From 1943 fake evergreen trees covered several cottages.

The remains are located between two districts in Hesse and can only be visited on organized tours. Before visiting, check current access rules, as not all areas are open to the public.

The seven buildings in Wiesental were disguised as half-timbered cottages, with 0.91 m thick concrete walls, dormer windows and flower baskets under tiled roofs. Inside they had oak floors, pine panelling and deer antlers. Hitler stayed in Haus 1 from 11 December 1944 to 16 January 1945; his workroom measured 24 m², the map room 38.5 m², and a shelter lay six metres below ground.