Mourners gather around the grave of Saudi Arabia's King Abdullah at the Al-Od cemetery in Riyadh on January 23, 2015 following his death in the early hours of the morning. Foreign leaders gathered in the Saudi capital for the funeral of the ruler of the world's top oil exporter and the spiritual home of Islam. AFP PHOTO / MOHAMMED MASHHUR        (Photo credit should read MOHAMMED MASHHUR/AFP via Getty Images)