Ключевые слова: architectural, architecture, bridge, bright, building, cathedral, catholic, central, christian, church, city, cityscape, cloud, cologne, dusk, embankment, europe, european, famous, german, germany, gothic, great, hohenzollern, illuminated, koeln, landmark, outdoor, panoramic, reflection, rhine, river, sky, sun, sunny, sunset, tourism, touristic, tower, twilight, water,