Niš is the administrative center of the Nišava District and the third-largest city in Serbia , given that it has a population of 187,544 in its urban area. At least that is what was indicated by the official census carried out in 2011. The city of Niš bears the name of the eponymous Nišava River, which flows gently through the city. Back in the day the Celts gave it a name of Navissos as early as the 3rd century BC; the Roman name for it Naissus originates from it furth
