If you’re afraid of heights, this journey possibly isn’t one for you.
This 2,142km stretch of highway connecting Chengdu, the capital of Sichuan province, with Lhasa in Tibet climbs to 4,700m above sea level at its highest point.
Part of China’s National Highway 318, it traverses 14 high-altitude mountains and includes a large number of testing hairpin bends.
One stretch includes 99 switchbacks as the road descends 1,200 from the top of the Yela Mountain. The Si Du River Bridge also provides a test of nerve as it has the world’s highest vertical clearance.