Pope Francis arrives for the World Youth Day closing Mass in Rio de Janeiro, Brazil, Sunday, July 28, 2013. Francis wrapped up a historic trip to his home continent Sunday with a Mass on Copacabana beach, urging the young people on hand for World Youth Day's concluding Mass to go out and spread their faith "to the fringes of society, even to those who seem farthest away, most indifferent." (AP Photo/Domenico Stinellis)