Historic Kalemegdan fort on the hill in the Belgrade 0Archiv

Military Museum with old Canons from World War One 0Archiv

A Kid Holding Toy Nerf Rifle 1Archiv

Old Church called Holly Petka on Kalemegdan Fortress in Belgrade 0Archiv

The old Orthodox Church of the Holy Petka at Kalemegdan in Belgrade 0Archiv

Castle of Aljezur / Schloss von Aljezur 0Archiv

Tower of Castle of Aljezur / Turm des Schlosses von Aljezur 0Archiv

Baltic Sea And North Forts 0Archiv

Citadella Church In Victoria 0Archiv

Danish fort in Copenhagen, Denmark 0Archiv

Oberes Schloss, Siegen 1Archiv