Leaping from Half Dome or anywhere else in Yosemite has been illegal since but the sport of BASE jumping from the Valley's cliffs is soaring in popularity. Many jumpers call El Cap the birthplace of the sport.
rarum: Angel Falls by Ken Fisher/Getty Images. This BASE jumper flies off Angel Falls in Venezuela. BASE is a backronym for buildings, antenna tower, span and earth - all high points that provide a place parachutists can jump from.