<answer>Philadelphia</answer>'s major science museums include the Franklin Institute, which contains the Benjamin Franklin National Memorial; the Academy of Natural Sciences; the Mütter Museum; and the University of Pennsylvania Museum of Archaeology and Anthropology. History museums include the National Constitution Center, the Atwater Kent Museum of <answer>Philadelphia</answer> History, the National Museum of American Jewish History, the African American Museum in <answer>Philadelphia</answer>, the Historical Society of Pennsylvania, the Grand Lodge of Free and Accepted Masons in the state of Pennsylvania and The Masonic Library and Museum of Pennsylvania and Eastern State Penitentiary. <answer>Philadelphia</answer> is home to the United States' first zoo and hospital, as well as Fairmount Park, one of America's oldest and largest urban parks.
Which city had the nations first zoo?
Philadelphia