It is worth of being proud to rail a railway on "roof of the world"　because the indescribable difficulties are always along the construction.

　　　　　　　　
　　　　Challenge oneself in the Forbidden Area for Life where is extremely cold and lack of oxygen.

　　　　　　　　
　　　　　　　　　　The frozen earth is a kind of difficulties for construction.

　　　　　　　　
　　　　　　　　　　　　Yangbajain I, the longest tunnel on "roof of the world"

　　　　　　　　
　　　　　　　　　　　　　Create miracle by building a railway on "roof of the world"