Palestinian leather tannery workers, salt the hides of sacrificial animals before drying them, during second day of Eid al-Adha or the feast of sacrifice, in a workshop in Gaza city on September 25, 2015. 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 Mohammed Asad