Ключевые слова: ancient, architecture, balkan, belgrad, belgrade, beograd, blue, brick, building, cathedral, city, culture, day, destination, europe, european, famous, fortress, gardos, gothic, historic, historical, history, kula, landmark, medieval, memorial, memorial tower, millennium, monument, old, outdoor, red, religion, serbia, serbian, sky, stone, sunny, tourism, touristic, tower, town, travel, urban, white, window, zemun,