I've pulled some sick moves on a skateboard (while playing Tony Hawk on Playstation) but I've never even seen something like this.  Watch this dude pull a 720 double kickflip in super slow motion. 

In real time, this doesn't look that impressive.  But when you see it slowed down, it's pretty amazing.  The dude's name is Robbyn Magby and this was filmed down in Farmington Hills.