If that scares you, you should check this one out.
It's repairmen climbing a guided tower 1,000+ feet in the air. Most of the parts are unharnessed free climbing, it's crazy. The thing doesn't even look like it's mean to be climbed.
yeah i've seen something like that on the discovery channel or nat geo or whatever. crazy stuff.
There was this video on youtube that i seen a while ago where some french dudes are doing chin ups off of some building without harnesses or anything......couldn't watch it all.