Chinese archaeologists have discovered 18 ancient wells dating back 1,000 years in Ezhou City in Central China's Hubei Province.
The wells, located at the ruins of the ancient capital of the Wu Kingdom (A.D. 222 to 280), lie side by side in a variety of shapes, such as cylindrical and polygonal.
The well mouths were found 2.5 meters underground, with diameters ranging from 0.8 meter to 2.2 meters and depths from 4 to 12 meters. The building materials of the wells include earth, china clay, brick and wood.
Totally unsure what the significance here is.