Ключевые слова: ancient, architecture, building, cathedral, catholic, christian, christianity, church, city, cologne, cologne cathedral, dom, domkirche, double, europe, european, exterior, facade, famous, german, germany, gothic, heritage, high, historic, history, koeln, koelner, koln, landmark, landscape, large, medieval, monument, old, people, religion, site, sky, square, symbol, tall, temple, tourism, tower, town, travel, two, view, world,