
Ruins of ancient city walls dating back to Han and Jin dynasties have been discovered in the Lop Nor Desert, Northwest China's Uygur autonomous region, Feb 16, 2017. (Photo/Xinhua)

Ruins of ancient city walls dating back to Han and Jin dynasties have been discovered in the Lop Nor Desert, Northwest China's Uygur autonomous region, Feb 16, 2017. (Photo/Xinhua)











