Ключевые слова: architecture, bridge, building, cathedral, catholic, catholicism, christian, christianity, church, city, cityscape, cologne, design, dom, dome, equestrian, facade, german, germany, gothic, heritage, historic, historical, hohenzollern, illuminated, kaiser, koeln, koln, landmark, landscape, light, medieval, night, old, outdoor, panorama, reflection, religion, rhine, river, roman, sky, skyline, statue, symbol, tourism, tower, travel, wilhelm,