East Asia CNN: Beneath the Great Wall of China lies the world's deepest high-speed railway station and the world's first self-driving high-speed train

[Beijingwalker]

 

[Beijingwalker]

The Great Wall hundreds of meters above the underground bullet trains

 

[Beijingwalker]

 

[Beijingwalker]

 

[Beijingwalker]

Over 100 meters underground, world's deepest high-speed railway station and the world's first self-driving high-speed train is already in action