Danube River

The Danube River is Europe's second-longest river, stretching about 2,850 kilometers from Germany's Black Forest to the Black Sea. It passes through or borders ten countries, including Germany, Austria, Hungary, and Romania, making it vital for transportation, commerce, and agriculture. The river's basin supports diverse ecosystems and communities, providing drinking water, energy, and recreation. Historically, it has been a key route for trade and cultural exchange across Central and Eastern Europe. The Danube also features important cities and landmarks along its course, highlighting its significance in the region's environmental and economic landscape.