A visitor views exhibits at the Pingyao International Photography Festival (PIP) in Pingyao County, north China's Shanxi province, Sept 22, 2014. The 2014 PIP kicked off in Pingyao on Sept. 19. [Photo by Zhan Yan/Xinhua]

A visitor takes photos of exhibits at the Pingyao International Photography Festival (PIP) in Pingyao County, north China's Shanxi province, Sept 22, 2014. The 2014 PIP kicked off in Pingyao on Sept 19.[Photo by Zhan Yan/Xinhua]

People visit a photo exhibition at the Pingyao International Photography Festival (PIP) in Pingyao County, north China's Shanxi province, Sept 20, 2014. The 2014 PIP kicked off in Pingyao on Sept. 19. [Photo by Zhan Yan/Xinhua]