Massive renovation at Great Wall's Jiayuguan

A tourist takes a photo of the gate tower at Jiayuguan Pass in Northwest China's Gansu province on April 16. Jiayuguan Pass, listed as a world cultural heritage site, is undergoing the largest renovation since its establishment 640 years ago, after years of erosion. The cultural heritage protection project, with a total investment of 2 billion yuan ($328.5 million), also includes setting up a monitoring center and a protection and exhibition center. Jiayuguan is the westernmost part of the Great Wall built during the Ming Dynasty (1368－1644). [Photo/Xinhua]