Danube

The Danube is Europe's second-longest river, running through sections of Germany, Austria, Slovakia, Croatia, Serbia, Bulgaria, Moldova, Ukraine, and Romania, with its drainage basin extending into nine further states and pouring into several towns, including four national capitals. The Danube River drains into the Black Sea.

The Danube was home to some of the first human societies, and its tributaries are key rivers in the nations through which they run. It is the primary supply of drinking water for about 20 billion people in Baden-Württemberg, Germany. The Danube River is also a great place to fish, though its popularity has declined in recent years.

The Danube banks of Budapest, which are also a tourist destination packed with remarkable landmarks, are Unesco World Heritage Sites. With a length of 1,777 miles, the Danube is also a popular natural and tourist attraction. It is also known as the longest river in Hungary.

Length: 1,777 miles (shared with Germany, Austria, Slovakia, Croatia, Serbia, Bulgaria, Moldova, Ukraine, and Romania)