Fact Finder - Geography

The Danube is Europe's second-longest river and holds a unique world record: it flows through more capital cities than any other river in the world. The Danube passes through Vienna (Austria), Bratislava (Slovakia), Budapest (Hungary), and Belgrade (Serbia). It also flows through or borders ten different countries from its source in Germany’s Black Forest to its mouth at the Black Sea. This makes it one of the most international and politically significant waterways on the planet. Its basin is home to over 80 million people, and for centuries, it served as the frontier of the Roman Empire. Today, it is a vital artery for European tourism and shipping.