Visitors view photos at the 17th Pingyao International Photography Festival in Pingyao, one of China's best preserved ancient towns, in North China's Shanxi province, Sept 19, 2017. More than 2,000 photographers from dozens of countries and regions gathered at Pingyao for the festival from Sept 19 to 25 Over 16,000 photos by photographers in the United States, Britain, France and Sri Lanka among others are on display. [Photo/Xinhua]