A torrent of water rushes underneath, gray and angry. Wind whips. Thunder rumbles in the distance. Clouds threaten rain. And before you is a bridge. But it is not just any bridge. It spans from one ...

Every step you take makes these old, worn-out planks creak. Is this bridge about to give out with you suspended 100 m (330 ft) above a raging river? Hang in there, help is on its way. Oh, and whatever ...