Dan Osman speed free soloing - http://www.youtube.com/watch?v=QPSaYkVRoNk Dean Potter slack lining Lost Arrow Spire - http://www.youtube.com/watch?v=uaqlM7W1HNI (I include this because it's amazing and gives you insight into the risks people like this are willing to take to do something amazing for themselves) Also check out high ball bouldering, which is code for free soloing on rock that is less than 50 feet (in my opinion). These kinds of climbs are generally low enough to the ground that you'd only be injured if you really fell, but the risk of death is certainly there. When you're climbing these kinds of things though, you have a good sense of your limits. So High (V5, R) - https://vimeo.com/10407888 featuring Paul Dusatko Buttermilks High Balling - http://www.youtube.com/watch?v=K3kCN84G-S0 feat Kevin Daniels