Muslim pilgrims travel to Saudi Arabia from all over the world for one of the five pillars of Islam, the hajj pilgrimage to Mecca. Millions participate in the annual rites, which always take place during the last month of the Islamic calendar year.
Millionlap zyýaratçy Haja geldi

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The holy city of Mecca hosts what is the largest mass gathering in the world every year, as millions of Muslim pilgrims converge on the Grand Mosque to take part in one of the five pillars of Islam.

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Many Muslims arrive at King Abdulaziz International Airport at the Red Sea port city of Jeddah as believers from all over the world begin to arrive in Saudi Arabia. (AFP PHOTO/AMER HILABI)

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Muslim pilgrims await prayers at the Grand Mosque in Mecca, with their ranks swelled ahead of the official start of the hajj. (AFP PHOTO/FAYEZ NURELDINE)

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Pilgrims perform what's known as "tawaf al qudum," circling the Kaaba -- the holiest site in Islam.