Ключевые слова: blue sky, cathedral, cathedral tower, chapel, church, church tower, cologne, cologne cathedral, deutschland, dom, europe, germany, gothic architecture, gothic style, historic monuments, kln, klner dom, koeln, land nordrhein westfalen, landscape, north rhine westphalia, old city, old town, scenery, sky, steeple, street, sunny, symbol, travel, world cultural heritage, world heritage,