Man that walked the tight rope over the Falls

When I was watching Nik Wallenda walk over the tight rope on TV I was so scared that he was going to fall. Also he had a wife and kids that were watching the whole time. If that was me I would have never let my husband do that. I have a fear of heights and when the camera showed how high up the rope was and my stomach like dropped right away cause it scared me. But anyways I'm happy he made it safe, and now he will be in the Guiness Records.