Scientists have discovered a huge circle of man-made pits around Durrington Walls near Stonehenge, Wiltshire. This is one of the largest prehistoric structures found in Britain. The pits are about 10 metres wide and 5 metres deep, arranged in a precise circle. They were made between 3100 BC and 1600 BC, showing careful planning and effort by Neolithic people. Archaeologists used advanced tools like electrical resistance tomography, radar, and magnetometry to study the pits without digging them fully. They also analyzed soil samples using optical dating and DNA tests. These tests proved the pits were dug by humans, not natural holes. Animal remains in the soil showed the area was used for settlement and ritual activities. Professor Vince Gaffney said, “The circle is pretty accurate. It suggests that people were pacing the distances out to make sure that the pits were aligned at the same distance all the way around.” Dr Tim Kinnaird called the site a “super henge,” with pits kept open for about 1,000 years. The purpose of the pits is not yet clear. Researchers think they might relate to ancient beliefs about the underworld or mark special boundaries. The pits show that prehistoric people created complex landscapes, working together to build huge monuments below the surface as well as above it. This discovery changes how we view the Stonehenge area. Instead of focusing only on the famous stones, it reveals an ancient world shaped by people digging deep into the earth, leaving a lasting mark on Britain’s history.