View of Mogao Grottoes in Dunhuang, NW China's Gansu

Photo taken on March 25, 2022 shows a view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Li Yuhui)

Aerial photo taken on March 25, 2022 shows the snow view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Zhang Zhimin)

Photo taken on March 25, 2022 shows a view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Zhou Mengdie)

Aerial photo taken on March 25, 2022 shows the snow view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Zhang Zhimin)

Aerial photo taken on March 25, 2022 shows the snow view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Zhang Zhimin)

Aerial photo taken on March 25, 2022 shows the snow view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Zhang Zhimin)

Aerial photo taken on March 25, 2022 shows the snow view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Zhang Zhimin)

Photo taken on March 25, 2022 shows a view of the Mogao Grottoes, a world cultural heritage site, in Dunhuang, northwest China's Gansu Province. (Xinhua/Zhou Mengdie)