The Qinghai-Tibet Railway, which departs from Beijing, Xining, Chengdu, or Shanghai, is the most well-known route. Among them, Xining is the entryway to the railway's highest point. The trip from Xining to Lhasa takes about 21 hours and takes you through some of the world's most remote and unspoiled areas. The journey itself, not just the destination, is what sets this train ride apart.

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