The Ušće (OOOSH-chay) Tower, located on the confluence of the Danube and Sava Rivers. (Ušće means 'mouth' of a river.) Ušće Tower is the tallest skyscraper in Belgrade, capital of Serbia, and the second-tallest building overall, after the Avala tower. It was the tallest skyscraper in the Balkans until the construction of the Avala Tower.
Got this shot when I managed to make it to Kalemegdan park early....and caught the mist.