Two elders of the Naxi ethnic group are seen in Lijiang, southwest China's Yunnan Province, on July 29, 2009. Lijiang received 3.44 million tourists in the first half of 2009, earning a tourism income of 3.88 billion RMB yuan (568 million U.S. dollars). Lijiang with an 800-year history was listed by the UNESCO in 1997 as a world cultural heritage site. [Xinhua/Lin Yiguang]