The Rhein-Ruhr region is a major urban area in western Germany, encompassing cities like Düsseldorf, Essen, and Dortmund. It is one of the largest metropolitan areas in Europe, known for its dense population and significant industrial history, particularly in coal and steel production. This region is characterized by a network of interconnected cities and towns, making it a vital economic hub. The Rhein and Ruhr rivers play a crucial role in transportation and trade, contributing to the area's development and cultural diversity. The region also offers various cultural attractions, including museums, theaters, and parks.