Tens of million of years ago, as a result of massive organic movement, the spectacular Himalayas, the Kangdese, Kunlun and Tanggula mountains rose to from the Roof of the world. For thousand of years, Tibetans have lived on this charming, mysterious plateau, bringing forth splendid culture. Despite the great changes in human society over the ages, Tibet is still one of the areas with the best preserve ecology in the world.