Ключевые слова: aged, ancient, antique, architecture, art, attraction, balkan, beautiful, blue, building, bulgaria, capital, city, culture, day, district, downtown, eastern, europe, exterior, facade, famous, gallery, heritage, historic, landmark, landscape, monument, museum, national, old, outdoor, outside, place, road, scene, sightseeing, sky, sofia, square, street, tourism, town, traditional, travel, urban, view, window, yellow,