Some of several hundred castles of the Teutonic Knights in Palestine and in the former East Prussia. 3D reconstructions.
Knights in Palestine.
Main castle of the Teutonic Order in Palestine, Montfort Castle. Advance observation tower Trefile.
Early Marienwerder Castle around 1234
Ordensburg Lochstedt (Samland) in Ostpreussen near Königsberg, today Kaliningrad.