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This aerial image made from a helicopter shows tens of thousands of Muslim pilgrims moving around the Kaaba, the black cube seen at center, inside the Grand Mosque, during the annual Hajj in the Saudi holy city of Mecca, Saudi Arabia, Saturday, Oct. 27, 2012. (AP Photo/Hassan Ammar)

This aerial image made from a helicopter shows tens of thousands of Muslim pilgrims moving around the Kaaba, the black cube seen at center, inside the Grand Mosque, during the annual Hajj in the Saudi holy city of Mecca, Saudi Arabia, Saturday, Oct. 27, 2012. (AP Photo/Hassan Ammar)

Hajj pilgrimage

The annual pilgrimage to Islam's holiest sites offers Muslims a chance

to reaffirm their faith and root themselves more firmly in their

beliefs.