It’s called Casteller and it involves building towers with living human beings. Basically Cheerleading on steroids. Yup, crazy.

(Source: Boing Boing)

This video is impressive and a bit crazy all at once. It’s impressive because this dude is skating down his street in Atlanta? And it’s crazy because we didn’t realize that there were people in Atlanta who actually owned skates?

Who’s up for some extreme tow-skiing down Park Avenue at 40MPH?

Ski parachuting, better known as speed flying, is parachuting down a mountain with skis. Take a trip down Mt. Superior in Utah through the eyes of a ski parachuter.
— via Superior, Speed Fly by Marshall Miller