People wave to Pope Francis as he leaves the Metropolitan Cathedral, in route to the airport in Santiago de Cuba, Cuba, Tuesday, Sept. 22, 2015. Pope Francis on Tuesday called on Cubans to rediscover their Catholic heritage and live a "revolution of tenderness," powerful words in a country whose 1959 revolution installed an atheist, communist government that sought to replace the church as the guiding force in people's lives. (AP Photo/Ramon Espinosa), APTOPIX