On Sunday, a team of archaeologists working on the site of an ancient village near Stonehenge made an unexpected discovery

Using new remote sensing technology, the team has uncovered a massive circle of shafts. They believe the 4000-year-old structure may have acted as a ritual boundary between Stonehenge and the Durrington Walls henge monument.

“As the place where the builders of Stonehenge lived and feasted, Durrington Walls is key to unlocking the story of the wider Stonehenge landscape,” Nick Snashall, the National Trust archaeologist for the Stonehenge and Avebury World Heritage Site, said in a statement.

This find makes the site the largest prehistoric structure in Britain and possibly in Europe, according to Vincent Gaffney, of the University of Bradford, an archaeologist involved in the analysis.

New technologies like remoting sensing and LIDAR are proving to be a major driving force in archaeological discoveries this year. 

Sunday’s discovery comes shortly after archaeologists used LIDAR to discover the largest Mayan structure ever found in Mexico.