panorama of the skyline of cologne with cologne cathedral

koelner dom cologne skyline rhein river hohenzollern bridge boat cruise cathedral panoramic view of altstadt old town love locks on the central station rhine promenade carnival koelntriangle chocolate museum koelnmesse trade fair kranhacurren user buildings opera ludwig rheinauhafen park rheinpark skulpturenpark terraces st maria im kapitol hahnentorburg gross martin church rheinboulevard landmark architecture germany europe panorama koeln tower water gothic north rhinewestphalia romanesque monument protection railway unesco transport colorful backgrounds