Lhasa – Kathmandu Railway Mega-Engineering
quora.com
quora.com
Quite an achievement. Built on permafrost, pressurised trains, highest stretches at 5,000+m altitude.
With this extension, one day we maybe able to do Beijing-Kathmandu by train, straight through the Himalayas. And on to India? Mumbai-Beijing via Lhasa sounds like a hell of a train journey.
[1] https://en.wikipedia.org/wiki/Qinghai%E2%80%93Tibet_railway