Ключевые слова: aerial, aged, ancient, antiquity, balkans, blue, border, building, castle, city, cultural, danube, defense, destination, europa, famous, fort, fortification, fortress, gorge, heritage, historical, landmark, landscape, legend, leisure, mediaeval, military, monumental, national, nature, old, panorama, river, rock, roman, romania, ruin, scenic, serbia, serbian, sightseeing, sky, summer, touristic, tower, town, travel, wall, water,