Egyptian enjoy the second day of Eid al-Adha or the feast of sacrifice, at a park in cairo, on Sep. 13, 2016. 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. Photo by Amr Sayed