The Danube River, the second-longest in Europe, flows through ten countries, making it a unique and historically significant waterway.
Spanning 2,800 kilometers, the Danube originates in Germany's Black Forest and empties into the Black Sea.
Its path takes it through Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, and Ukraine.
Historically, the Danube served as a natural border, notably for the Roman Empire.
Today, it's a popular tourist destination, with cruises offering views of cities and towns along its banks.
Travelers can admire architectural wonders and sample local cuisines, such as visiting the Chain Bridge in Budapest, Hungary.
In winter, the frozen river provides a spectacular natural sight.