Ключевые слова: 2019, aerial, amphitheatre, ancient, antique, architecture, attraction, building, bulgaria, capital, center, city, cityscape, concert, culture, destination, eastern, european, event, hills, historical, history, landmark, lasers, night, official, old, opening, panorama, philippopolis, plovdiv, projectors, roman, show, square, stage, street, theater, together, tourism, tower, town, travel, we are all colors,