Tibet, balanced on the towering Tibetan Plateau, is an autonomous region of China. Often called the “Roof of the World” for its myriad soaring Himalayan peaks, China shares with Nepal the world’s highest mountain, Qomolangma (Mt. Everest), the international border between the two nations running across its summit point. Tibet is home to ancient monasteries, grand and imposing palaces, bustling squares that swarm with with a constant swirl of devout Tibetans and breathtaking high-altitude treks that offer staggering panoramas of the world’s tallest peaks exploding upwards beneath some of the bluest skies on the planet.