Mike at curiousfrog mentioned that he still saw faces in the Old Man of New Hampshire, even though the original has fallen apart. He's absolutely right.
I think I was having trouble seeing the same one he was seeing, but it's tough to keep a good old rock man down. I see at least 3 faces (and pieces of a lot more) when I look at the photo you see here. I've tried to highlight them as best as I can.
Click the thumbnail for the full image.
The phenomenon that practically forces us to see these faces is also respinsible for the face on mars. The name of that phenomenon is pareidolia.