In Hajj, thousands of Muslims are gathered in Saudi Arabia from around the world. On November 5, about 2.5 million Muslims will be gathered in Makkah, Saudi Arabia.
From Google Blog;
Earlier this year, we worked with the Saudi Ministry of Culture and Information to broadcast Islamic prayers live during Ramadan from the Holy Mosque in Mecca for the first time. In continued cooperation with the Ministry, we’re now able to live stream the Hajj on YouTube for the first time.
The stream will be live on Saturday, November 5 at http://www.youtube.com/hajjlive.
Hajj is one of the pillars of Islam.