>> On personal note, this was my first visit to a prehistoric site ...
Oh dear. And so it begins!
It's great that you enjoyed it. I'm gobsmacked that anyone who's been posting on here for so long has never been to see one. I assume your first sight of the Avebury stones up close hasn't altered your ideas?
West Kennett is something else isn't it!? I think I'm the only person on the planet that fails to have his boat floated by Silbury. I think this is because I have extreme difficulty in allowing myself to believe that something so HUGE is manmade. It's a kind of defensive mechanism of some sort I think.