Secret underground tunnels discovered in ruins of 4,300-year-old Chinese city

Alex Daniel
27m

The city of Houchengzui in northern China is an archaeological site dating back more than 4,000 years. Back then, it was a heavily armoured place with three concentric defensive walls, turrets, guarded gates and trenches.

However, historians might have found an easier way in: a network of secret tunnels.

The city is between 4,300 and 4,500 years old, dating it to some time in the Longshan period, which saw the emergence of late Neolithic societies.

Houchengzui stretches across about 15 million sq ft and was discovered in 2005. Archaeologists have been excavating the site since 2019.

Now, six intersecting tunnels that functioned as a hidden transport network have been found in the most recent round of excavations.

More:
https://www.indy100.com/science-tech/china-city-tunnels-houchengzui-2673778313