Ключевые слова: aerial, ancient, architecture, balkans, brick, building, bulgaria, bulgarian, city, cityscape, dawn, destination, downtown, dusk, europe, european, evening, heritage, hill, historical, history, house, landmark, landscape, old, outdoors, panorama, panoramic, plovdiv, residential, roof, rooftop, sky, skyline, summer, sunset, tourism, town, travel, unesco, urban, view,