Performer Jiang Xiaolong displays the "changing face" technique of the Laixi puppet show in Laixi County of Qingdao, east China's Shandong Province, Dec. 1, 2018. Laixi puppet show is an intangible cultural heritage with a history of over 2,000 years. The new generation of inheritors are working to protect and promote the time-honored folk art. (Xinhua/Ding Hongfa)