D 50667 Colgne 53m, until 1919 also called Coeln, in the Colognian dialect called Koelle, lies at the Rhine and is the largest city in the German state Nordrhein Westfalen. Colonia is located in the Colonian Bay of a valley landscape between the region Bergisch Land and the Eifel mountain range. Presented by https://www.youtube.com/user/dorinthotels.