Cologne Cathedral, Cologne, UNESCO World Heritage Site, North Rhine Westphalia, Germany, Europe

architecture building exterior cathedral cathedrals christianity cities city location cologne color image contemporary europe exteriors germany koln landmark landmarks nordrhein westfalen nordrhein westfalen north rhine westphalia north rhine westphalia outdoors photography place of worship places religious travel travel destinations vertical world heritage site christian color colour eu eu european european union german outside western europe western european