A Pakistani Muslim devotee offers Eid al-Adha prayers at the Badshahi Mosque in Lahore on October 16, 2013. Muslims across the world are celebrating the annual festival of Eid al-Adha, or the Festival of Sacrifice, which marks the end of the Hajj pilgrimage to Mecca and in commemoration of Prophet Abraham's readiness to sacrifice his son to show obedience to God.   AFP PHOTO/ Arif ALI        (Photo credit should read Arif Ali/AFP/Getty Images)