Cologne is a vibrant metropolis on the Rhine River, known for its rich history and diverse architectural styles.
Leverkusen is a vibrant, urban municipality situated in the North Rhine-Westphalia region of Germany.
Bonn is a city on the banks of the Rhine River in the German state of North Rhine-Westphalia.
Solingen, also known as the 'city of blades', is well known for its knife and sword manufacturing industry.
Remscheid is known for its toolmaking and mechanical engineering industries.
Düsseldorf is a major cultural and economic hub, with an influential arts scene and numerous international corporations.
Wuppertal is a city located in western Germany, well-known for its steep slopes and woods.
Mönchengladbach is an urban municipality in Germany.
Located in the Düsseldorf Government Region, Krefeld is an urban municipality.
Mülheim an der Ruhr is a large urban city situated in the Düsseldorf Government Region of Germany. Postal codes range from 45401 to 45481.