People display weaving of Li ethnic group on the Cultural and Natural Heritage Day at an exhibition center in Guangzhou, capital of south China's Guangdong Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Xu Jianmei)

Visitors watch shadow play on the Cultural and Natural Heritage Day at a museum in Houma City, north China's Shanxi Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Qiao Jinchun)

People view a shadow puppets exhibition on the Cultural and Natural Heritage Day at a museum in Houma City, north China's Shanxi Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Qiao Jinchun)

Photo taken on June 8, 2019 shows a woodblock printing demonstration on the Cultural and Natural Heritage Day at an exhibition center in Guangzhou, capital of south China's Guangdong Province. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Xu Jianmei)

Children experience shadow puppets performance on the Cultural and Natural Heritage Day at a museum in Houma City, north China's Shanxi Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Qiao Jinchun)

A child tries the art of rubbing on the Cultural and Natural Heritage Day at Taining County, southeast China's Fujian Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Qiu Canwang)

Children try movable-type printing on the Cultural and Natural Heritage Day at Taining County, southeast China's Fujian Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Qiu Canwang)

Folk artists present an intangible cultural heritage performance on the Cultural and Natural Heritage Day at the Taierzhuang ancient town in Zaozhuang, east China's Shandong Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Sun Zhongzhe)

Folk artists present an intangible cultural heritage performance on the Cultural and Natural Heritage Day at the Taierzhuang ancient town in Zaozhuang, east China's Shandong Province, June 8, 2019. More than 3,200 activities have been staged across China to celebrate this year's Cultural and Natural Heritage Day, which falls on the second Saturday of every June. (Xinhua/Sun Zhongzhe)