Can you name the two longest rivers in Europe? The longest river in Europe is in the former USSR, and the second longest river in Europe is not.

Europe's vast landscape is traversed by many significant waterways, but two stand out as the longest. The reigning champion, stretching an impressive 3,530 to 3,692 kilometers (approximately 2,190 to 2,294 miles), is the Volga River. This mighty river flows entirely within Russia, originating in the Valdai Hills northwest of Moscow and winding its way through central and southern Russia before emptying into the Caspian Sea. Often referred to as "Mother Volga," it is deeply ingrained in Russian culture, history, and economy, serving as a crucial artery for transportation and supporting a large portion of the country's population. Historically, the territory it drains was a significant part of the former USSR.

Following the Volga in length is the Danube River, Europe's second-longest, measuring approximately 2,850 to 2,860 kilometers (about 1,770 to 1,780 miles) long. Unlike the Volga, the Danube begins its journey in the Black Forest mountains of Germany and flows eastward across a remarkable ten countries before reaching the Black Sea. This extensive route means it traverses a diverse array of nations, including Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, and Ukraine, clearly placing it outside the confines of the former USSR.

Both rivers are vital to the continent, not only for their sheer size but also for their profound impact on the regions they touch. The Volga's delta, for instance, is the largest inland delta in Europe and a unique ecological zone known for its rich biodiversity, including pelicans and flamingos. The Danube, recognized as the world's most international river basin, connects numerous cultures and economies, even flowing through four European capital cities: Vienna, Bratislava, Budapest, and Belgrade. Its banks have witnessed centuries of history, from serving as a frontier of the Roman Empire to inspiring famous musical compositions like "The Blue Danube Waltz."