Tourist centers in Yunnan include: Dali, the historic center of the Nanzhao and Dali kingdoms. Jinghong, the center of the Xishuangbanna Dai minority autonomous prefecture. Lijiang, a Naxi minority town labelled 'Shangri-la' by the Chinese government. It has been a UNESCO World Heritage Site since 1997. The Stone Forest, a series of karst outcrops east of Kunming. Yuanyang, a Hani minority settlement with vast rice-terraces. Shangri-La County (formerly Zhongdian), an ethnic Tibetan township and county set high in Yunnan's north-western mountains.