Ключевые слова: architecture, autumn, barrier lake, blue sky, building, buoy, city region, citys, fall, famous, german, germany, house, landscape, locked, metropolitan area, northrhine westphalia, northrhinewestphalia, old, point of interest, river, roof, ruhrarea, sea, sight, slate, town, townhall, tradition, tree, urban center, urban centre, west germany, worth seeing,