Haj is considered the duty of every able Muslim: a pilgrimage to Mecca, the birthplace of the Prophet Mohammed. It is the fifth and final pillar of Islam, guided by the prophet, and each year roughly two million devout Muslims take the journey. The pilgrims, or hajjis, wear white as a symbol of their purity and equality throughout the occasion whereupon all gather around the Great Mosque in Mecca to walk seven times around the Kabah shrine before kissing it, in one of the most famous displays of religious duty in the entire world. It is almost impossible for non-Muslim's to partake in the event as they are not allowed in Mecca, although many have tried and succeeded over the years, including famous explorer Sir Richard Burton.
Date: 24 - 27 October 2012