Two pilgrims give thumbs up to the fast and convenient services of the Meacca light rail trains in Mecca, Saudi Arabia, Aug. 11, 2019. China Railway Construction Corporation Limited (CRCC), operator of the Mecca light rail in the Hajj season in Mecca, Saudi Arabia, completed this year's pilgrimage transport service on Wednesday. During the seven-day operation, the total operation time of Mecca light rail was 156 hours, and more than 2.4 million trips were delivered safely and accurately. (Photo by Dong Liwei/Xinhua)