They climb tallest building -- and launch their Phantom to record it too

This is all kinds of illegal, but still spectacular as a feat.

I wonder who was actually flying the Phantom?
When they are climbing the crane there is no sign of a back pack anywhere so you have to assume they had support doing the actual flying.
 
I used to rock climb in my youth. I'm such a wuss now! Even videos like this get my palms sweaty.
 
Makes me feel ill just watching it.
Some people are just wired different.