Experts work on the ruins in Jeminay County, northwest China's Xinjiang Uygur Autonomous Region, Aug. 16, 2017. Archeologists identified a cluster of caves in Jeminay on a paleolithic site, the first ever found in the region. The ruins in Jeminay County date back at least 40,000 years. Excavation of the ruins will continue in 2017 and 2018. (Xinhua/Shen Qiao)
