If you look closely at the one above, I think you can see two ridges of the wall. And on the one below, too. That's our photographer. I don't recall her name, but she was a videographer and they sold us a video of our two days in Beijing. Berenice bought one. I've viewed it. It's a nice document of where we were. Well, it's just a great document of the fact that we were THERE! It still seems rather like a dream. Notice all the bus parking and many buildings in the area below where we walked up from.
Every brick that was over a hole (drainage?) in the wall had this decoration in them.
And, yes. They were steep. And icy. I think that's the fellows on the roof having a grand ol' time.