From across the country and around the world faithful Catholics are gathering for the final day of Pope Francis' first visit to the United States.
Pilgrims are packing subway cars and lugging bags and portable chairs as they make their way to Philadelphia's Benjamin Franklin Parkway, where Francis will celebrate an afternoon Mass that could draw a million people or more.
Before the Mass, Francis is scheduled to visit a Philadelphia prison where he will speak with inmates, members of their families and corrections officers.
