Ключевые слова: architectural, architecture, black, blue, bridge, cathedral, catholic, christian, church, city, cityscape, cologne, design, dom, europe, evening, german, germany, golden, heritage, historic, historical, hour, illuminated, illumination, koeln, koelner, koln, kolner, light, low, night, nordrheinwestfalen, nrw, old, picturesque, red, religion, rhein, rheinland, rhine, rhineland, sky, skyline, steeple, sunset, tradition, view,