Ключевые слова: ancient, architecture, balkans, buildings, bulgaria, center, city, cityscape, classic, cultural, culture, destination, europe, european, exterior, historical, history, landmark, nineteenth century, old town, outdoor, outside, panorama, park, past, philippopolis, plovdiv, plovdiv region, sight, sightseeing, street, structure, thracian, tourism, town, travel, tree, trip, urban,