Ключевые слова: aerial, aerial view, ancient, architecture, balkan, balkans, biala, bridge, buildings, bulgaria, byala, classic, cultural, danube plain, danubian plain, destination, drone, europe, european, exterior, hill, historical, history, kolyu ficheto, kolyu ficheto bridge, landmark, landscape, nature, ottoman, outside, park, past, river, ruse region, sight, sightseeing, street, tourism, town, trail, travel, urban, view, water, yantra, yantra river,