The boy who sees without eyes

This is a documentary about a boy named Ben Underwood who has taught himself to use echo location to navigate around the world. Ben Underwood is blind, but has managed to do some truly extraordinary feats. It's extraordinary what the human body and spirit is capable of I guess it is true when they say nothing is impossible. This is broken into 5 parts but you can watch the rest on youtube and I highly recommend it if you have some time it's pretty breathtaking.