An aerial drone photo taken on Oct. 21, 2026 shows a view of the Maiji Mountain Grottoes in Tianshui City, northwest China's Gansu Province. The autumn scenery of Maiji Mountain Grottoes, one of the four most famous grottoes in China, and its surrounding mountains attracted numerous tourists. (Xinhua/Lang Bingbing)

　　Tourists visit the Maiji Mountain Grottoes in Tianshui City, northwest China's Gansu Province, Oct. 21, 2026. The autumn scenery of Maiji Mountain Grottoes, one of the four most famous grottoes in China, and its surrounding mountains attracted numerous tourists. (Xinhua/Lang Bingbing)

　　Tourists visit the Maiji Mountain Grottoes in Tianshui City, northwest China's Gansu Province, Oct. 21, 2026. The autumn scenery of Maiji Mountain Grottoes, one of the four most famous grottoes in China, and its surrounding mountains attracted numerous tourists. (Xinhua/Li Yibo)

　　Tourists visit the Maiji Mountain Grottoes in Tianshui City, northwest China's Gansu Province, Oct. 21, 2026. The autumn scenery of Maiji Mountain Grottoes, one of the four most famous grottoes in China, and its surrounding mountains attracted numerous tourists. (Xinhua/Li Yibo)