The tunnels of the underground fortress of Zhangbi Cun, near Pingyao, China. 1400 years old and stretching for more than 10 km, it is the oldest and l

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The tunnels of the underground fortress of Zhangbi Cun, near Pingyao, China. 1400 years old and stretching for more than 10 km, it is the oldest and longest network of tunnels of all of China

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Size: 2000px × 3000px
Location: pingyao china
Photo credit: © Giuseppe Spartà / Alamy / Afripics
License: Royalty Free
Model Released: No

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