Current read: Studying history of Tibet.
With an average elevation of 4,900 m (16,000 ft), Tibet is the highest region on earth. For this reason, it is sometimes called the Roof of the World. Most of the people in Tibet live at elevations ranging from 1,200 m (3,900 ft) to 5,100 m (16,700 ft). Tibet is also one of the world’s most isolated regions, surrounded by the Himalayas on the south, the Karakoram Range on the west, and the Kunlun Mountains on the north.