Ключевые слова: archeological, architecture, balkan, battlefield, belgrade, beograd, beogradska, building, capital, caste, castle, city, danube, destination, europe, fort, fortification, fortified, fortress, garden, gate, green, hill, historic, historical, history, kalemegdan, landmark, leaf, medieval, monument, nature, nobody, observation, outdoor, park, river, serbia, serbian, sightseeing, stone, stream, stronghold, tourism, tower, travel, tvrdjava, wall, walls,