Cindy Alverez posted an update in the group Discovery 3 years, 10 months ago
The Largest Ancient Monument, In Britain, Was Discovered Near Stonehenge Using Geophysical Remote Sensing Technology And Sampling. The Structure, A 20 Ring Shaft, Is Suggested To Have Been Excavated By Neolithic People More Than 4,500 Years Ago. The Monument Is A 2km Circle Of Large Shafts Measuring More Than 10m In Diameter And 5m Deep.