You might be interested in "Crap Days Out", a book published about 1 decade ago. In it you can find out such treats as the Dinosaur Museum, which has no dinosaurs, the Pencil Museum, which boasts the world's largest pencil, and Teapot Island, home to more than 8,000 teapots. Of course Stonehenge appears in it.
Describes Stonehenge perfectly. Which I suppose could be some sort of ancient pylons?