Yesterday marked the end of the Muslim festival Eid al-Adha, or "Feast of Sacrifice" - which also marks the end of the Hajj, the annual pilgrimage to Mecca, Saudi Arabia. One of the pillars of Islamic faith, the Hajj must be carried out at least once in their lifetime by any Muslim who has the ability to do so. This year, nearly 3 million Muslims made the Hajj, without major incident, and are now