1) The Danube is Europe's second-longest river and the longest within the European Union.
2) It flows through 10 different countries, making it a trans-boundary river.
3) Ancient Greeks called the Danube River the 'Istros,' which means strong and swift.
4) Originating in the Black Forest Mountains of West Germany, the Danube River begins its journey.
5) After traveling approximately 2850 km, the Danube River empties into the Black Sea.
6) The Danube River stretches for 2857 km in length and covers a catchment area of 817,000 square km.
7) The Danube River basin is home to 83 million people and boasts diverse and unique habitats.
8) Following the Volga River Delta, the Danube Delta is the second largest delta in Europe.
9) Tributaries of the Danube River include the Iller, Lech, Altmühl, Naab, Regen, and Isar rivers, among others.
10) Cities situated along the banks of the Danube River include Vienna in Austria, Bratislava in Slovakia, and Bucharest in Romania, among others.