Chinese classic dance drama "Tales of the Silk Road -- Dunhuang, My Dreamland" is performed at the Lanzhou Concert Hall in Lanzhou, capital of northwest China's Gansu Province, May 17, 2019. (Xinhua/Fan Peishen)

Chinese classic dance drama "Tales of the Silk Road -- Dunhuang, My Dreamland" is performed at the Lanzhou Concert Hall in Lanzhou, capital of northwest China's Gansu Province, May 17, 2019. (Xinhua/Fan Peishen)

Chinese classic dance drama "Tales of the Silk Road -- Dunhuang, My Dreamland" is performed at the Lanzhou Concert Hall in Lanzhou, capital of northwest China's Gansu Province, May 17, 2019. (Xinhua/Fan Peishen)

Chinese classic dance drama "Tales of the Silk Road -- Dunhuang, My Dreamland" is performed at the Lanzhou Concert Hall in Lanzhou, capital of northwest China's Gansu Province, May 17, 2019. (Xinhua/Zhang Rui)

Chinese classic dance drama "Tales of the Silk Road -- Dunhuang, My Dreamland" is performed at the Lanzhou Concert Hall in Lanzhou, capital of northwest China's Gansu Province, May 17, 2019. (Xinhua/Zhang Rui)

Chinese classic dance drama "Tales of the Silk Road -- Dunhuang, My Dreamland" is performed at the Lanzhou Concert Hall in Lanzhou, capital of northwest China's Gansu Province, May 17, 2019. (Xinhua/Fan Peishen)