Repeat: On Sunday, Zac Vawter will attempt to make history and climb 103 flights of stairs to the top of one of the world's tallest skyscrapers using a bionic leg that he controls via his thoughts.
On Sunday, Zac Vawter will attempt to make history and climb 103 flights of stairs to the top of one of the world's tallest skyscrapers using a bionic leg that he controls via his thoughts.