The video below is about the 青藏铁路 (Qingzang railway) connecting Tibet Autonomous Region's Lhasa and Qinghai Province's Xining. Much of the 2000km railway is an engineering marvel. One, for it's 5000 meter elevation and rough terrain and another for where the tracks have to work on top of permafrosts (where the ice could melt depending on the time of the year). It opened in … [Read more...] about Tibet’s “天路” (“Heaven Road”)