
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.Photo:Xinhua

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.Photo:Xinhua

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.Photo:Xinhua

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.Photo:Xinhua

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.Photo:Xinhua

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.Photo:Xinhua

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.Photo:Xinhua

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.Photo:Xinhua