avebury stone circles and henge. the guardian stone – stone 1 – also known as the devil’s chair due to the natural recess in its southern face large enough in which to sit -is one end of a chimney that rises up through this 40 ton sarsen. it’s one of two massive stones at the southern entrance greeting you on entering the great circle from the west kennet avenue. stones 100 and 101 of the inner southern circle can be seen in the background. #archaeology #neolithic #stonecircles #sarsenstones #standingstones #avebury #henge #westkennetavenue #stoneavenue #wiltshire