The problem is that you get Callanish and Brodgar tagged as The "Stonehenge of the North" also..Pretty insulting 'cos they are both far superior to that "Stonehenge of the South" in the layby of the A303
I'd go for "Thornborough Prehistoric Landscape" Trouble with all the viewshed aspirations is that the damage has been done to so much of the landscape so close to the henges and all you can hope for now is no more and restoration of what has already been ripped out.