Photo taken on June 18, 2011 shows the ruins of the Guge Kingdom in Zanda County of Ngari Prefecture, southwest China's Tibet Autonomous Region. Guge Kingdom, an ancient kingdom estimated to have existed between the 9th and 17th centuries in what is known today as Zanda County, is famed for its ruins, which are the largest ruins and also best preserved artifacts from the kingdom, including color paintings, clay sculptures and stone sculptures. Photo: Xinhua