Ключевые слова: aerial, architecture, blue, building, cathedral, church, city, cityscape, cloudy, cologne, discover, dom, europe, german, germany, gothic, heritage, historic, journey, kln, koeln, koln, landmark, landscape, large, light, medieval, modern, panorama, panoramic, rhein, rhine, sightseeing, sky, skyline, summer, tall, tourism, touristic, tourists, tower, towers, town, travel, traveling, twilight, unesco, urban, view, visitors,