The Political Implications of Tibetan Buddhism's Rootsbr Tattered Cover - Tattered Cover Book Storebr With an average elevation higher than the tallest peaks of Colorado, Tibet has been called the "Roof of the World."Join Active Minds as we explore the history and controversy that surrounds this unique region.China claims that Tibet has been part of China for centuries, while Tibet maintains that China illegally invaded the independent country in 1949.