Lhasa (/ˈlɑːsə/; Tibetan: ལྷ་ས་, Wylie: lha sa, ZYPY: Lhasa, [l̥ásə] or [l̥ɜ́ːsə]; simplified Chinese: 拉萨; traditional Chinese: 拉薩; pinyin: Lāsà; sometimes spelled Lasa) is the administrative capital of Tibet. It is the second most populous city on the Tibetan Plateau, after Xining, and at an altitude of 3,490 metres (11,450 ft), Lhasa is one of the highest cities in the world. The city contains many culturally significant Tibetan Buddhist sites such as the Potala Palace, Jokhang temple and Norbulingka palaces, many of which are located in Chengguan District, the city seat.