Cuban President Raul Castro (R) gestures next to Pope Benedict XVI as they arrive to a protocol hall at the Revolution Palace in Havana, on March 27, 2012. Pope Benedict XVI, on the second day of a historic visit to Cuba, headed to Havana where he is to celebrate mass and possibly meet with the island's most famous inhabitant -- former president Fidel Castro. AFP PHOTO/ADALBERTO ROQUE-POOL