Ключевые слова: aerial, aerial view, architecture, art, attraction, autumn, balkans, building, bulgaria, bulgarian, center, centre, city, cityscape, culture, destination, drone, europe, european, facade, fall, famous, historical, history, landmark, mining, monument, outside sight, panorama, pernik, scene, sight, sightseeing, square, street, structure, sunset, tourism, touristic, town, travel, trip, urban, view,