This photo by Giorgia Sharm clearly shows the huts and the feaures in the walls that I know have interested some readers.
Giorgia has kindly given me permission to post this photo here and has uploaded the high res version; unfortunately there is something in her Flickr settings stopping me from downloading that. So for the moment I have linked to Flickr. I may need to take this post down yet and re-post, so please bear with me. I will try to get the high res version on here as I know people wish to blow up the features in the wall.