Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province. (Photos: Xinhua)

Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province.

Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province.

Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province.

Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province.

Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province.

Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province.

Aerial photo taken on Nov. 14, 2020 shows a view of Danxia landform, a landscape characterized by reddish sandstone features, in Guide County, northwest China's Qinghai Province.