Silk Roads: The Routes Network of Chang'an-Tian Shan Corridor is a UNESCO World Heritage Site which covers the Chang'an-Tianshan portion of the ancient Silk Road and historical sites along the route. On June 22, 2014, UNESCO designated a 5,000 km stretch of the Silk Road network from Central China to the Zhetsyu Region of Central Asia as a World Heritage site. The corridor spans China, Kazakhstan and Kyrgyzstan and includes 33 new sites and several previously designated heritage sites.