Okay... this was about the coolest thing we have ever seen! The Red Bull Flugtag USA is a national event that hits four cities every year - this year Miami, Philadelphia, Long Beach and the Twin Cities! Teams launch themselves off a 30-foot platform into the water; in this case the Mississippi River in downtown St. Paul. 
We were able to watch from our boat, as the 35 teams defied gravity and sanity. Here, a B-25 replica achieves the world record for Flugtag (German for flying day) - over 200 feet! Most of the contraptions didn't do so well, or even look like flying machines at all. Teams are graded on distance, showmanship and creativity, and all of the teams do a skit to music on the platform before the launch... awesome!