Sculptures at Maiji Mountain Grottoes in Tianshui, Gansu

Photo taken on Nov. 29, 2020 shows a sculpture at the Maiji Mountain Grottoes in Tianshui, northwest China's Gansu Province.

Photo taken on Nov. 29, 2020 shows a sculpture at the Maiji Mountain Grottoes in Tianshui, northwest China's Gansu Province.

Photo taken on Nov. 29, 2020 shows a fresco at the Maiji Mountain Grottoes in Tianshui, northwest China's Gansu Province.

Friedrich Engels' 200th Birth Anniversary Snow scenery of Huoshan Mountain in east China