By: Trevor Loudon | The Epoch Times The City Hall building with the statue of William Penn on top is seen in the city center of Philadelphia on December 3, 2017. Philadelphia is the largest city in Pennsylvania and the sixth-most populous city in the United States, with an estimated population of 1,567,872 and more than 6 million in metropolitan area, as of 2016. Philadelphia is the economic and cultural … [Read more...]