Ключевые слова: ancient, architecture, bell, building, cathedral, catholic, catholicism, christian, christianity, church, city, cologne, day, design, detail, dom, dome, double, exterior, facade, german, germany, gothic, heritage, historic, history, koeln, koln, landmark, medieval, old, ornament, religion, religious, roman, sculpture, sky, spire, summer, sunny, symbol, tourism, tower, travel, world,