Engineering challenges: fighting canyon winds

If you've ever felt your stomach drop looking down from a tall building, imagine driving across a bridge nearly twice the height of the Eiffel Tower. This is the thrilling new journey in Guizhou, turning a two-hour drive into a two-minute spectacle. It's efficient, beautiful, and challenges everything we assume about crossing a gorge. On the show: Niu Honglin, Steve & Yushun