Ключевые слова: architecture, blue, bridge, building, cathedral, church, city, cityscape, cologne, day, europe, exterior, feature, german, germany, gothic, horizontal, mark, old, outdoors, panoramic, place, raine, reflection, rein, rhein, rhine, river, ship, sign, site, sky, skyline, styles, symbol, tall, tower, train, urban, vessel, water tourist,