Muslim pilgrims in Mecca for Hajj

Muslim pilgrims pray around the Ka'baa which Muslims believe was built by Prophet Abraham and his son Ismael, at the Grand Mosque, Islam's holiest shrine in Mecca, Saudi Arabia on December 9, 2008. More than two million Muslims head to the holy city of Mecca to make the annual Hajj pilgrimage. (UPI Photo/Mohammad Kheirkhah)