I'm surprised it's not better-protected. Is that little chain all that stands between the chunk of wall and would-be souvenir-seekers?

Or was the photo taken in such a way that you can't see the laser-gun-mounts?
 

Well, I haven't even seen the thing in real life. But if they had an old DDR guard tower to go with the slab of rock it would be a real souveniring coup.