View over river Rhine with Hohenzollern bridge to old town, Cologne, North Rhine-Westphalia, Germany

metropolis sight unesco world cultural heritage cityscape architecture europe city cathedral unesco hohenzollern bridge north rhine westphalia hohe domkirche st peter und maria landmark gothic cologne bridge building exterior church koeln old town urban scene bridge day landmark koelner dom outdoors hohenzollernbruecke cologne cathedral romanesque national landmark great st martin church local landmark city rhine railway bridge germany