Iran prepares for Eid al-Adha

A sheep is seen in open-air market in southern Tehran, Iran on December 20, 2007. Muslims worldwide observe the Eid al-Adha festival during which they sacrifice permissible animals, generally rams, goats, sheep, cows and camels to commemorate the story of the Prophet Abraham and his readiness to sacrifice his son Ismael as an act of obedience to God, who provided a lamb to be used instead. (UPI Photo/Mohammad Kheirkhah)