Topic - Independence National Historical Park

Independence National Historical Park is a United States National Historical Park in Philadelphia that preserves several sites associated with the American Revolution and the nation's founding history. Administered by the National Park Service, the park comprises much of the downtown (or "Center City") historic district. The park has been nicknamed "America's most historic square mile" because of its abundance of historic landmarks, and the park sites are located within the Old City and Society Hill neighborhoods of Philadelphia. - Source: Wikipedia