A waitress serves beers for customers during the 23rd Qingdao International Beer Festival in Qingdao, east China's Shandong Province, Aug. 25, 2013. The 16-day 23rd Qingdao International Beer Festival closed on Sunday, in which more than 300 kinds of beers attracted about 4 million people from home and abroad. (Xinhua/Li Ziheng)