![](http://www.alamy.com/thumbs/6/3A5E2EB9-2DA3-4D5A-9E32-35ADB5E7F908/BXE5B6.jpg)
Passengers check the altitude on the Qinghai - Xizang train, the world's highest railway, here between Chengdu and Lhasa, Tibet.
Size: 5616px × 3744px
Location: T22 Train between Chengdu, China and Lhasa, Tibet.
Photo credit: © Tim Whitby / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: altitude, chengdu, china, highest, lhasa, oxygen, pass, qinghai–xizang, railway, record, skytrain, t22, tanggula, tibet, train, travel, world, worlds