Old Falkenstein Castle

Old Falkenstein Castle in the Harz Mountains of Germany is the castle site or burgstall of a high medieval hill castle. It lies on the territory of Falkenstein/Harz in the state of Saxony-Anhalt in the district of Harz. It was built in the 11th century A.D. and destroyed in 1115.

Source: Wikipedia (CC BY-SA 4.0) — https://en.wikipedia.org/wiki/Old_Falkenstein_Castle