"Extreme sports" takes on new meaning when you watch the CBS 60 Minutes segment on "Taking Flight with Birdmen." These extreme adventurers don "birdmen" suits then jump off some of Norway's highest cliffs. During the first few seconds of free fall the suits fill with air, then the birdman soars at up to 140 miles per hour alongside cliffs and over valleys. The most dangerous part of this flight, a birdman says, is knowing the best time to pull the cord so the parachute opens and he can land safely.
Another name for this extreme sport is "base jumping." On Bridge Day, you can also see hundreds of base jumpers leaping off the Newriver Bridge in West Virginia. Here's a link to an article, with a base jumping image, and a video of the flying Birdmen.