Tourists visit the ancient fortress of Jiayuguan in northwest China's Gansu Province, Oct. 14, 2015. The repair project of Jiayuguan has finished and it was open to public recently. The ancient fortress of Jiayuguan was built in 1372 and it is the western terminal of the Great Wall constructed during the Ming Dynasty (1368-1644). The repair project started since 2011 with an investment of 2.03 billion yuan (about 319 million US dollars). (Xinhua/Fan Peikun)