Tourists admire icicles at Dadunxia scenic spot in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, Dec. 16, 2018. (Xinhua/Shi Youdong)
Tourists admire icicles at Dadunxia scenic spot in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, Dec. 16, 2018. (Xinhua/Shi Youdong)
Tourists admire icicles at Dadunxia scenic spot in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, Dec. 16, 2018. (Xinhua/Shi Youdong)
Tourists admire icicles at Dadunxia scenic spot in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, Dec. 16, 2018. (Xinhua/Shi Youdong)
Tourists admire icicles at Dadunxia scenic spot in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, Dec. 16, 2018. (Xinhua/Shi Youdong)