Ключевые слова: ancient, architecture, blue, brick, building, canal, castle, city, culture, danube, europe, famous place, fort, fortified, fortress, heritage, historic, historical, history, horizontal, landmark, large, medieval, monument, old, old ruin, outdoors, people, river, rock, ruin, serbia, smederevo, stone, stone wall, stronghold, tourism, tower, town, travel, travel destinations, view, wall, walls, water,