Known as the world's highest railway, the Qinghai-Tibet line is 1,900 kilometers long and above 4,000 meters above sea level, and it takes you 22 hours all the way from Xining to Lhasa. Since its opening in 2006, the railway has been a convenient way of travel for all ethnic groups in Tibet, as well as tourists entering the region. CGTN reporter Sim Sim tells what this unique journey is like during China's Mid-Autumn and National Day holiday.

Video director: Yu Yingtian

Cameras: Guo Yuanheng, Yu Yingtian

On-camera reporter: Sim Sim Wissgott

Video editor: Yu Yingtian

Production assistant: Yu Wenwen

Producer: Zhang Xiaohe

Supervisor: Zhang Shilei