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Title
Panorama of the danube waters in Belgrade, Serbia, with a blue sky. Reka dunav, or danube river, is a major river of Europe and a #309911667
Description
Picture of the waters of Danube in Serbia. The Danube is the second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest south into the Black Sea. A large and historically important river, it was once a frontier of the Roman Empire