Lhasa or Chengguan is a district and administrative capital of Lhasa City in the Tibet Autonomous Region of the People's Republic of China. The inner urban area of Lhasa City is equivalent to the administrative borders of Chengguan District, which is part of the wider prefectural Lhasa City. Lhasa is the second most populous urban area on the Tibetan Plateau after Xining and, at an altitude of 3656m, Lhasa is one of the highest cities in the world. The city has been the religious and administrative capital of Tibet since the mid-17th century. It contains many culturally significant Tibetan Buddhist sites such as the Potala Palace, Jokhang Temple and Norbulingka Palaces.
