Ключевые слова: ancient, antique, archaeological, archaeologist, archaeology, architecture, balkans, banja, baschi, blue, building, bulgaria, bulgarian, capital, city, culture, day, downtown, europe, european, excavation, heritage, historic, history, landmark, monument, mosque, old, outdoor, outside, place, religion, roman, september, serdica, site, sky, sofia, summer, tourism, town, travel, vintage, wall,