Ключевые слова: ancient, architecture, attraction, blue, building, bulgaria, capital, city, cityscape, cultural, culture, destination, europe, european, exterior, gate, heritage, hill, historic, historical, landmark, medieval, monument, old, old town, outdoor, plovdiv, road, roman, sightseeing, sky, stone, street, summer, tourism, tourist, town, traditional, travel, urban, view, visit, wall,