November 24, 2010, 5am PST
Millions have been in the tent city of Mina in Mecca for the annual Hajj pilgrimage. Though the crowds are temporary, the infrastructure built to handle them is permanent.
November 19, 2010, 6am PST
Millions of religious pilgrims travel to Mecca in Saudi Arabia every year for the Hajj. Officials there have been updating the city to better handle the crowds.