A Muslim Pilgrim prays outside the Grand Mosque in the holy city of Mecca, Saudi Arabia, Sunday, Sept. 20, 2015. Roughly 3 million people from around the world are expected to converge at the Kaaba, in Mina and other nearby areas for the hajj, which lasts about five days. All able-bodied Muslims are required to perform once in their lives. (AP Photo/Mosa’ab Elshamy)