Belgrade, capital of Serbia , is situated on two major European rivers , Danube (passes through Vienna, Bratislava, Budapest, Novi Sad, etc) and Sava (Ljubljana, Zagreb, etc) ... this is just a little tour of its riverfront.
Don't expect too much - unlike in Budapest, most of Belgrade's landmark buildings were NOT built along the waterfront, but more inland. That will however start changing soon, with the construction of new Opera building, new museums and other content.
Enjoy