The longest river in Europe is the Volga, which is entirely located on the territory of Russia. It is 3,531 kilometers long and flows into the Caspian Sea. The second longest river on our continent is the Danube, which is 2,888 kilometers long and flows into the Black Sea on the border of Romania and Ukraine. It flows through as many as 10 European countries, its sources being in south-west Germany. The last on the podium is the Ural River, which separates Europe from Asia for a certain section and is 2,428 kilometers long.