Ключевые слова: aachen, aachen cathedral, aachener dom, blue sky, byzantine architecture, cathedral, cathedral tower, chapel, church, church tower, deutschland, dom, europe, germany, historic monuments, holy roman empire, land nordrheinwestfalen, landscape, neoclassical architecture, nordrhein westfalen, north rhinewestphalia, old city, old town, scenery, sky, steeple, street, sunny, symbol, travel, unesco world heritage, world cultural heritage, world heritage,