If you're unfamiliar with the wingsuit, you're going to want to check this out. After all, this extreme sport is just about as close as a human can get to flying -- and if something goes wrong, well, let's just say that these daredevils better hope nothing does.
The first wingsuit was used by 19-year-old Rex Finney from Los Angeles, sometime around 1930. It's just what it sounds like: A wind-repellant suit with "wings" attached, though they function more like gliders. People have been using them to jump from very high places for years now, and this famous waterfall in Switzerland is a super popular spot for the stunt. Check out the footage of this daring soar through the sky below.