Hajj begins

Over 2 million Muslims have made the journey to Mecca, Saudi Arabia, for the Hajj pilgrimage. Hajj is an Islamic annual pilgrimage to Mecca, the holiest city in Islam, and takes place over five days. Islam is the world’s second largest religion, and people who follow Islam are called Muslims. One of the duties of a Muslim is to do Hajj at least once in their lifetime if they are physically fit and if they can afford it.

Image Credits: Al Jazeera English for Hajj image
Sources: http://www.washingtonpost.com/, http://www.fairmont.com/makkah/, http://gizmodo.com/