Tibet, the so-called »Roof of the World«, is a vast highland in Central Asia. Hidden behind huge mountain ranges, the highest plateau of earth together with its inhabitants, the Tibetans, is little known to the rest of the world. The »country of the snow lion«, as the historical Tibet is also called, is comprised of the three big provinces Ü-Tsang, Kham and Amdo and several smaller ones encompassing an area of 2.5 million square kilometres. China, however, incorporated all of Amdo and large parts of Kham into the adjacent Chinese provinces. The remaining area was given the name »Tibet Autonomous Region«.