So Ive climbed and rappelled cell towers. Those are 130-200 feet max. No tying in to anything because, well, of course i shouldn't be up on them, and I don't have the gear to tie in to their stuff.

As scary as hell as climbing up was, the worst part was at the end, going up to untie the rope when we were done rappelling for the night, because climbing down is about 100 times scarier because your body is in the way of your vision that is looking for the next hold and you're looking down the whole time. IOW, going up looked scary as hell in the video, but the feeling going back down would be worse.