Ключевые слова: alexander, architecture, attraction, balkans, big, biggest, blue, building, bulgaria, bulgarian, capital, cathedral, christian, christianity, church, city, construction, cross, culture, day, dome, eastern, europe, european, exterior, faith, famous, golden, history, huge, landmark, large, largest, nevski, nevsky, old, orthodox, religion, religious, saint, sky, sofia, st, summer, temple, tourism, tourist, tradition, travel, worship,