In this Monday, Sept. 21, 2015 photo, a Muslim pilgrim prays while touching the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
In this Monday, Sept. 21, 2015 photo, Muslim pilgrims pray as they touch the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
In this Monday, Sept. 21, 2015 photo, Muslim pilgrims pray at the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
Muslim pilgrims pray around the holy Kaaba at the Grand Mosque ahead of the annual haj pilgrimage in Mecca September 22, 2015 (REUTers)
In this Monday, Sept. 21, 2015 photo taken with a slow shutter speed, Muslim pilgrims circle the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
In this Monday, Sept. 21, 2015 photo, a Muslim pilgrim cries while praying at the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
In this Monday, Sept. 21, 2015 photo, a Muslim pilgrims pray while touching the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
Muslim pilgrims pray around the holy Kaaba at the Grand Mosque ahead of the annual haj pilgrimage in Mecca September 22, 2015. (Reuters)
In this Monday, Sept. 21, 2015 photo, a Muslim pilgrim smiles as someone takes a photo of him next to the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
In this Monday, Sept. 21, 2015 photo, a Muslim pilgrim carries his daughter as they circle the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca (AP)
Muslim pilgrims wait for bus ahead of the annual haj pilgrimage in Mecca September 22, 2015 (REUTERS)
A father and his son circle the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia, Tuesday, Sept. 22, 2015 (AP)
A Muslim pilgrim holds a tree as he stands on the roadside ahead of the annual haj pilgrimage in Mecca September 22, 2015 (Reuters)
A Muslim pilgrim uses an electric wheelchair to circle the Kaaba, the cubic building at the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia, Tuesday, Sept. 22, 2015 (AP)
Muslim pilgrims walk outside the Grand Mosque in the Muslim holy city of Mecca, Saudi Arabia, Tuesday, Sept. 22, 2015 (AP)