Song Guochao, successor of the national intangible cultural heritage of shadow play, manipulates a leather puppet during a performance in Dalian, Northeast China's Liaoning province, June 4, 2015. The Chinese shadow play is performed by manipulating flat leather puppets against a lit-up translucent screen. The art form was registered in the Representative List of the Intangible Cultural Heritage of Humanity by the UNESCO in 2011. [Photo by Zhang Chunlei/Xinhua]