Pope Francis, holding his pastoral staff, approaches the altar to celebrate Mass at the Plaza of the Revolution, in Holguin, Cuba, Monday, Sept. 21, 2015. Francis marked the anniversary Monday of the day he decided as a teenager to become a priest traveling to Cuba's fourth-largest city, Holguin, and then onto to Santiago on the southeastern coast of Cuba. (AP Photo/Alessandra Tarantino), APTOPIX