water moat of smederevo fortress or water trench of the smederevo fortress / vodeni šanac smederevske tvrđave ili vodeni rov

ancient architecture balkan bricks bridge building castle city construction cultural culture danube destination europe exterior famous fort fortification fortified fortress heritage historic historical history ili landmark landscape military moat monument national old outdoors river rock rov ruin ruins serbia serbian sight sightseeing smederevo smederevske smederevskoj srbija stone strong stronghold tourism tower town travel trench trip tvrđave utvrdi vacation vodeni wall walls water šanac