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Muslim pilgrims gather in Mecca for hajj

Amr Abdallah Dalsh / Reuters

Muslim pilgrims circle the Kaaba and pray at the Grand mosque during the annual hajj pilgrimage in the holy city of Mecca on Tuesday, October 23, 2012, ahead of Eid al-Adha which marks the end of hajj. On October 25, the day of Arafat, millions of Muslim pilgrims will stand in prayer on Mount Arafat near Mecca at the peak of the annual pilgrimage.

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