THIS UNDERGROUND CITY WAS BUILT FOR 6 MILLION PEOPLE TO INHABIT

In 1969, Chairman Mao began the construction of a large underground network of tunnels and chambers to act as a safe guard in the case of nuclear attack. While the underground city was never actually use, it’s endless tunnels and rooms still remain today and can even be explored by tourists for a small fee.

It’s even listed on Google..
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One of the entrances to the underground city…

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Endless tunnels span the massive underground system…

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One of the washrooms built into the city

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Flooded areas cut off access to many of the tunnels

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via i09

beijing-underground-cityvia i09