Old residential buildings made of concrete and a 70s high rise steel skyscraper in the city center of Belgrade, the capital city of Serbia, during a sunny afternoon. Picture of a typical street of the city center of Belgrade, Serbia, with old concrete grey buildings for residential purposes and a more moder steel skyscraper, business building. Belgrade is the capital city of Serbia, and one of the biggest metropoles of Balkans and central Europe.の素材 [FY310135212622]