Climber becomes first person to ascend frozen Niagara Falls (VIDEO)

Recently released footage shows professional climber Will Gadd becoming the first person ever to ascend frozen sections of the world’s largest-flowing waterfall, Niagara Falls. (Associated Press/Jan. 30, 2015)

This story was originally published January 30, 2015 at 7:34 PM with the headline "Climber becomes first person to ascend frozen Niagara Falls (VIDEO)."