For one Saturday every fall, the New River Gorge Bridge in Fayetteville, W. Va., transforms into a human launch pad. It's known as Bridge Day, the largest event in the world dedicated to a sport that defines the word extreme.
Keep clicking to see some of the vertigo-inducing scenes seen at the 2012 event.
While it's illegal in most states in the U.S., BASE jumping is defined as a free fall parachuted jump off a fixed object. BASE stands for the origin of the jumps: a building, antennae, span (or bridge), or the earth itself.
Tandem skydiving took off in the 1990s and today, there are more than 500,000 tandem jumps annually across the U.S. Those looking to let rookies take part in BASE jumping hope for the same for their sport.
Alex Boylan and a "CBS This Morning" cameraman talk with Ronnie Franklin, who was a paratrooper in Vietnam, and since then has always wanted to BASE jump. With the advent of tandem BASE jumping he was finally able to do so. Watch his jump in the "CBS This Morning" report.