"Dead easy! Can somebody "Photoshop" an ordinary pic of Silbury to show what it could have looked like without the grass and post it in the "artistic" part of the site?"

Good thinking Jim. PeterH has produced a version with just the top bare, but it would be good to see a completely white one. Trouble is, not sure the Eds here are too keen on fanciful stuff. And, the image ought to show the original Thing on top, oughtn't it?