Ethnic Chinese Qiang dancers perform during the opening ceremony of the first International Festival of Intangible Culture Heritage in Chengdu, in southwest China"s Sichuan province on Monday, 23 May. The 20-day long festival brings the various cultural shows from around the world to visitors. China currently has four pieces of works on the UNESCO"s intangible culture heritage list and 33 places on the UNESCO list of top historical sites.