avebury the largest megalithic stone circle mist of avalon

425 are aubrey avalon avebury banks blocks built century circle circular circumference circumscribed consisting cretaceous dated deep destroyed diameter embankment europenit extracted famous find foot high hills inside interested kennet largest marlborough megalithic mist moat neolithic part researchers river rolling searched site stone structure stukeley sunrise sunset thelegacyofthesoul vvii walls was were whose