A house roof is pictured at the ancient residence of Mu's family in the old town of Lijiang, southwest China's Yunnan Province, Sept. 8, 2013. Besides the beautiful landscape, Lijiang is renowned for its 800-year-old townlet that has been listed as the world cultural heritage by the UNESCO. It has become a popular destination for tourists from home and abroad. (Xinhua/Xue Dongmei)