Ключевые слова: aerial, architecture, avala, balkan, belgrade, belgrade serbia, building, capital, city, cityscape, europe, gardo, gardos, gardos tower, historic, horizon, houses, landmark, landscape, lookout, millennium tower, monument, novi beograd, old, roof, roofs, serbia, serbian, sightseeing, skyline, street, tourism, touristic, tower, town, travel, urban, zemun, zemun belgrade, zemun serbia,