Ostrog (fortress)W
Ostrog (fortress)
Bagration flèchesW
Bagration flèches
Fortress of Saint Dimitry of RostovW
Fortress of Saint Dimitry of Rostov
Gulyay-gorodW
Gulyay-gorod
Königsberg fortificationsW
Königsberg fortifications
Mamelon (fort)W
Mamelon (fort)
Round Tower (Vyborg)W
Round Tower (Vyborg)
Vyborg town wallW
Vyborg town wall
Great Zasechnaya chertaW
Great Zasechnaya cherta