What’s the main river in Paris?
The Seine River runs right through Paris; historically it was quite shallow in the city, but reservoirs and locks help to maintain a constant water level. Periodically the level of the Seine rises to threatening levels, most recently in the winter of 1999-2000.
Where is the Danube River?
The longest river in the European Union, the Danube River is the second-longest river in Europe after Russia’s Volga. It begins in the Black Forest region of Germany and runs through 10 countries (Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova and Ukraine) on its way to the Black Sea.