Tibet is a plateau region in China, with an average elevation of 4,900 metres (16,000 ft), it is the highest region on Earth and has in recent decades increasingly been referred to as the "Roof of the World". Tibet has a long history and beautiful landscape. Its brilliant and ancient monasteries and unique local customs attract flocks of tourists. Lhasa, Xigaze, Shannan, Nyingchi, Nagqu, Ngari and Qamdo have different land-forms and fantastic customs. You are welcome to Tibet and to have a look of these rare wonders in the world.