Ключевые слова: ancient, architecture, balkans, beautiful, belgrade, beograd, blue, boat, bridge, building, capital, castle, church, city, cityscape, danube, destination, downtown, europe, fort, fortress, green, historic, historical, history, kalemegdan, landmark, landscape, medieval, monument, nature, outdoor, park, river, sava, scenery, serbia, serbian, ship, sky, summer, sunset, tourism, tourist, tower, town, travel, urban, view, water,