Catholics set the World Youth Day Cross on the altar during the WYD inaugural Mass on Copacabana beach, in Rio de Janeiro, Brazil, Tuesday, July 23, 2013. As many as 1 million young peo

 

              Catholics set the World Youth Day Cross on the altar during the WYD inaugural Mass on Copacabana beach, in Rio de Janeiro, Brazil, Tuesday, July 23, 2013. As many as 1 million young peo
Catholics set the World Youth Day Cross on the altar during the WYD inaugural Mass on Copacabana beach, in Rio de Janeiro, Brazil, Tuesday, July 23, 2013. As many as 1 million young people from around the world are expected in Rio for the Catholic youth event. Pope Francis arrived in Rio de Janeiro on Monday to begin a weeklong visit to participate in the World Youth Day festival. AP Photo/Domenico Stinellis)