This is a video of a new waterslide in Germany that does a loopty loop. It's not straight up and down or anything, but it's still pretty damn impressive. The ride starts with you standing in a little chamber and then getting dropped through the trap-door floor. It looks like a lot of fun. As long as shitting your banana hammock on a German water slide is your idea of fun.
Another, longer video showing how the thing was made, after the drop.
Thanks Shawn, lets stand at the bottom and wait to see if any chicks lose their tops