There is a man called Grandmaster Iron Kim,leader of a martial art called Oom Yung Doe,who claims on their web that in 1970 he performed a flying side-kick off of an 11 story building and landed on a sloped surface below without injury,supposedly because of his miraculous skills.While I do believe that in Asia there are many things we in the West would not understand (I don't believe this guy did it) I was wondering if any martial arts masters or instructors ever heard of any TRUE masters being able to demonstrate this or similar feats.