Muslim pilgrims ascend Mount Al-Noor ahead of the annual haj pilgrimage in Mecca
Muslim pilgrims ascend Mount Al-Noor ahead of the annual haj pilgrimage in Mecca October 10, 2013. Mount Al-Noor houses Ghar-E-Hira or Hira cave, where Prophet Mohammad is said to have spent a great deal of time in the cave meditating and it is believed that he had received his first revelation inside this cave. REUTERS/Ibraheem Abu Mustafa (SAUDI ARABIA - Tags: RELIGION)
Haj 2013: journey to Mecca
Millions of Muslims from around the world travel to Mecca, Saudi Arabia for the annual pilgrimage of Haj, the fifth pillar of Islam. This year, Haj falls on October 14.