Riders of Mongolian ethnic group attend the 23rd Nadam Fair in Bairin Right Banner of Chifeng city, North China's Inner Mongolia autonomous region, July 21, 2014. Nadam, which means "entertainment and games" in Mongolian language, has a tradition of more than 700 years. Over 30,000 local residents and visitors will participate in activities like horse racing, archery, Mongolian wrestling, costumes show, art competition, etc. [Photo/Xinhua]