The Great Wall
Ironically, the name given to this underground city was the “Underground Great Wall”. The site has just under 100 entrances, and they’re all hidden (perhaps there are more). The city had its own schools, hospitals, and even sleeping halls.
The Great Wall
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Closed For Now
We can all be thankful that there has been no use for this underground city, and at this point it is closed to the public and has been for the last 10 years due to renovation work.
Closed For Now
