Yungang Grottoes in China's Datong is a Unesco World Heritage site featuring over 50,000 stone Buddhist sculptures. <br /><br />Find out how Chinese researchers are employing digital technologies to help with its protection. <br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline