Ziegenberg Castle, Medieval castle in Ober-Mörlen, Germany

Ziegenberg Castle is a castle on a ridge near the Usa river in Ober-Mörlen, in the German state of Hesse. It retains parts of an original round tower alongside baroque facade elements added during a later rebuilding of the structure.

The Lords of Falkenstein built a new castle from 1367, first documented in 1388, on the site of an earlier tower. Around 1747, Hans Eitel Diede zum Fürstenstein had the medieval castle rebuilt as a baroque palace. In March 1945, American fighter-bombers largely destroyed it; it was partially restored and converted into condominiums in 1992/1993.

The castle sits in the Taunus region, where hilltop fortresses were once common, and its walls show layers from different centuries standing side by side. Walking around the outside, visitors can see how each period left a visible mark on the building.

The castle is now private residential property and is not open to the public, so visitors should stay outside the property boundaries. The exterior and its architectural features can be seen from the road or paths around the site.

From 1939 the Wehrmacht built extensive bunker complexes around the castle as part of the Führer Headquarters Adlerhorst. In September 1944, Field Marshal von Rundstedt directed the Ardennes Offensive from here. In March 1945, American fighter-bombers largely destroyed the castle.