St. Petka Church, Belgrade Fortress, Belgrade, Serbia, Europe

photography colour colour image color color image horizontal horizontal image outdoors outside day background people incidental people people in the background travel destination travel destinations travel belgrade serbia europe european elevated view city cities st petka church belgrade fortress kalemegdan park church churches tourist destination landmark landmarks famous well known well known doorway fort forts fortified fortification fortress fortresses history historical historic heritage antiquity archaeological site religious building stone facade detail serbian orthodox 16th century full frame chapel ancient civilisation