A Muslim pilgrim prays atop Mount Mercy on the plains of Arafat during the peak of the annual haj pilgrimage, near the holy city of Mecca…A Muslim pilgrim prays atop Mount Mercy on the plains of Arafat during the peak of the annual haj pilgrimage, near the holy city of Mecca early morning October 14, 2013. An estimated two million Muslims were in Mecca, Saudi Arabia, on Monday morning for the start of the annual Haj pilgrimage. REUTERS/Ibraheem Abu Mustafa (SAUDI ARABIA – Tags: SOCIETY RELIGION)