I came across this video earlier tonight, and it (1) left me dumbfounded and (2) reminded me of how much I enjoyed riding my BMX as a teenager.  I’m amazed by the advances made in street/trials riding, and this video of Danny MacAskill is a good example of how far a talented rider can push the limits of physics/sanity.

 http://www.youtube.com/watch?v=Z19zFlPah-o