Impossible Engineering S05E09 Himalayan Mega Train 480p x264-mSD [eztv]
To build the Qinghai-Tibet Railway, the world's highest railway, engineers braved a deadly Himalayan environment and its -40-degree temperatures. The cutting-edge $4 billion train system they built connects Lhasa, one of the planet's most inaccessible cities, to a world beyond the ice.