Classified as an international waterway, it originates in the town of Donaueschingen in the Black Forest of Germany at the confluence of the rivers Brigach and Breg.
The Danube then flows southeast for 2,872 km (1,785 mi), passing through four Central and Eastern European capitals.
Belgrade (Serbian: Beograd) is the capital and largest city of Serbia. The city is located at the confluence of the Sava and Danube rivers, where the Pannonian Plain meets the Balkans. Its name in English translates to "The White city". The city proper has a population of about 1.2 million, while its metropolitan area has over 1.6 million people, making it one of the largest cities in Southeast Europe.
Next, Belgrade images:
Sveti Sava church
Knez Mihail square
Confluence of Danube and Sava rivers
St Ivan @Kalemegdan and Sava river
Kalemegdan - St Ivan
Kalemegdan the 2 towers