Wikipedia: "In late 2007, all DB NachtZug services were integrated into a consolidated, DBAG wholly-owned subsidiary, City Night Line. All former DB NachtZug services now operate under the City Night Line brand, with all equipment bearing NachtZug branding in the process of either being repainted into full CNL livery or receiving a "patch" paint job, consisting of patchwork City Night Line brand name decals pasted over former NZ branding."
Located along the river Ruhr, Essen was traditionally a significant coal and steel center, one of the largest in Germany. Essen has modernized, hosting a number of large German corporations and boasting a vibrant cultural offering at a number of venues, particularly the Aalto Theater, which is an architectural masterpiece and home to ballet and opera. Essen is also regarded to be a “city of shopping”, particularly since the opening of the Metropolis shopping mall.