The engineering principle of "building roads through mountains and bridges over waters" faced its ultimate challenge in Medog, China's Xizang. As the last county in China to gain road access, engineers, with wisdom and determination, carved out a highway in Medog County, transforming impassable road into a smooth thoroughfare.

Filming: CGTN

Editor: An Fuhua, Peng Qing

Translator: Peng Qing, Liu Fang

Review: Drakpa Wangchen, Pan Lu