A shocking video captures the moment a bus plunged off a cliff on the 'world's most dangerous road'. The jaw-dropping footage shows the driver creeping past the cliff's edge on a treacherous stretch of the Bolivian pass while a crowd tries to help guide his way. One man who steps forward and gestures to the driver to help him steer further away from the edge does so in vain as it eventually tips forward with the weight of it carrying it over the side.