Ключевые слова: ancient, architecture, attraction, background, belgrade, beograd, blue, brick, building, castle, cathedral, center, christianity, church, city, cityscape, clouds, destination, europe, exterior, flag, fort, fortress, gates, historic, history, kalemegdan, landmark, medieval, monument, morning, old, outdoor, park, ruins, serbia, sightseeing, sky, stone, street, summer, sun, sunset, tourism, tower, town, travel, vacation, wall,