Tourists visit the ancient city of Pingyao in north China's Shanxi Province, May 19, 2018. China Tourism Day falls on Saturday, when many scenic areas give discount on tickets to attract visitors. (Photos: Xinhua)

Tourists visit the Yungang Grottoes in Datong, north China's Shanxi Province, May 19, 2018. China Tourism Day falls on Saturday, when many scenic areas give discount on tickets to attract visitors. 

Tourists visit the Crescent lake scenic area in Dunhuang, northwest China's Gansu Province, May 19, 2018. China Tourism Day falls on Saturday, when many scenic areas give discount on tickets to attract visitors. 

Tourists experience the shadow play in the ancient town of Taierzhuang in east China's Shandong Province, May 19, 2018. China Tourism Day falls on Saturday, when many scenic areas give discount on tickets to attract visitors. 

Tourists visit the Hukou Waterfall of the Yellow River in Jixian County, north China's Shanxi Province, May 19, 2018. China Tourism Day falls on Saturday, when many scenic areas give discount on tickets to attract visitors. 

Performers perform martial arts during an event for China Tourism Day in Wenxian County, central China's Henan Province, May 19, 2018. China Tourism Day falls on Saturday. 

Performers perform lion dance during an event for China Tourism Day in Wenxian County, central China's Henan Province, May 19, 2018. China Tourism Day falls on Saturday. 

Performers perform Tai Chi during an event for China Tourism Day in Wenxian County, central China's Henan Province, May 19, 2018. China Tourism Day falls on Saturday.