Tibet (roof of the world), part of the People’s Republic of China, is a historical region covering much of the Tibetan Plateau in Central Asia. It is the traditional homeland of the Tibetan people as well as some other ethnic groups such as Monpa, Qiang, and Lhoba peoples and is now also inhabited by considerable numbers of Han Chinese and Hui people’s. Tibet is the highest region on Earth, with an average elevation of 4,900m (16,072ft). The highest elevation in Tibet is Mount Everest as Tibetan people’s call “Chomolungma” (highest peak of the world), located on the border with Nepal, rising 8,848m (29,022ft) above sea level. Tibet is also known by “Water Tower” of Asia.