>> reporter: can't put a ladder up there. bill: damage possibly to this monument could be so high that this is the only way to access it but as far as we know this is the first time they have gone down this way, repelling. >> reporter: short of trying something off the wall, have a helicopter fly over and someone repel down from that, and engineers will be up there repelling and looking over every inch of that to see what has to be repaired and to assess the damage. the only way they can do it, bill to put eyes on it. only way to do that is go up to the top and repel down, looking at every square inch of that landmark. bill: that is a heck of a shot, kelly. it really is. the picture of the day. martha: i'm so glad he volunteered to do it, that guy. bill: we will keep an eye on it, okay. when he starts going down we'll get back to you. >> reporter: going down safely, bill. bill: safely. thank you, kelly. some background and great information from kelly. built in two faces from lack