Photos: Muslims celebrate Eid al-Adha

A woman prays during Eid prayers at the Badshahi Mosque in Lahore, Pakistan, on Saturday, October 27. Eid al-Adha, or the Feast of Sacrifice, marks the end of the annual Hajj pilgrimage to Mecca, Saudi Arabia, and honors the Prophet Ibrahim's willingness to sacrifice his son, Ishmael, on the order of God, who according to the religion then provided a lamb in the boy's place. More than 2 million Muslims make the annual Hajj pilgrimage to Mecca, which is one of the five pillars of Islam.

A woman prays during Eid prayers at the Badshahi Mosque in Lahore, Pakistan, on Saturday, October 27. Eid al-Adha, or the Feast of Sacrifice, marks the end of the annual Hajj pilgrimage to Mecca, Saudi Arabia, and honors the Prophet Ibrahim's willingness to sacrifice his son, Ishmael, on the order of God, who according to the religion then provided a lamb in the boy's place. More than 2 million Muslims make the annual Hajj pilgrimage to Mecca, which is one of the five pillars of Islam.