Cuba's President Raul Castro greets Pope Francis as he arrives at the Plaza of the Revolution to celebrate Mass, in Holguin, Cuba, Monday, Sept. 21, 2015. Holguin's plaza was packed with thousands of people waving flags as Francis traveled in his popemobile through the crowd. Francis is the first pope to visit Holguin, Cuba's third-largest city. (Tony Gentile/Pool via AP), APTOPIX