File photo shows the excavation site at Qingpingbao castle in Jingbian County, Yulin City, northwest China's Shaanxi Province. (Photo provided to China News Service)
The remains of a Great Wall castle dating back to the Ming Dynasty (1368-1644) were discovered, confirming the position of the Great Wall in the Ming Dynasty.
File photo shows the excavation site at Qingpingbao castle in Jingbian County, Yulin City, northwest China's Shaanxi Province. (Photo provided to China News Service)
File photo shows the excavation site at Qingpingbao castle in Jingbian County, Yulin City, northwest China's Shaanxi Province. (Photo provided to China News Service)
File photo shows the excavation site at Qingpingbao castle in Jingbian County, Yulin City, northwest China's Shaanxi Province. (Photo provided to China News Service)
File photo shows clay statues unearthed from the remains of the Qingpingbao castle in Jingbian County, Yulin City, northwest China's Shaanxi Province. (Photo provided to China News Service)