A Gaoshan Opera performer waits for her turn on stage in Maojiazhuang Village, Yulong Township of Wudu District, Longnan, northwest China's Gansu Province, Feb. 17, 2019. Longnan's Gaoshan Opera originated in present-day Wudu District more than 700 years ago, and it has been listed as one of China's intangible cultural heritages. Featuring a unique choreography that re-enacts everyday life scenes, this folk opera is typically performed to mark the Lantern Festival, the last day of the Chinese Lunar New Year celebrations. (Xinhua/Cai Yang)