Hi - I was in Avebury on Sunday, taking pictures for part of my Love Landscape series of pictures. I photographed the heart shape on the stone numbered 34 on maps and wondered if anyone knows whether the shape is a result of natural weathering or whether it was graffiti'd on at some point. No idea how to upload the picture, but if you're familiar with Avebury, I'm sure you know the stone I mean.

Paul