We had read about Avebury, another place like Stonehenge where ancient stones had been placed thousands of years ago. And that was impressive - it was a huge ditch carved in a giant circle - it was so large it would have taken 5 or 10 minutes to walk across it, and huge stones placed inside it, with a village there, too. The stones were inside green pastures with lots of sheep grazing around them. It was very impressive.