The principal river flowing through Germany is the Rhine River, which is one of the most important rivers in Europe. Spanning approximately 1,230 kilometers (760 miles), the Rhine flows from Switzerland to the North Sea, passing through major cities such as Cologne and Düsseldorf. The river is vital for transportation, commerce, and tourism, enabling trade and cultural exchange along its banks. Its picturesque landscapes and historical significance have made the Rhine a symbol of German culture and heritage.