Pedaling a bicycle around the world was a lifelong dream, but everyone told him it could not be done. Dismissing the skeptics, disinterested sponsors, and a woefully inadequate bank account, Scott Zamek resolved to try. Some 25,000 miles and six million pedal revolutions later, Zamek had encountered Bengal tigers, angry mobs, prison and sandstorms, fed on yak, dog meat, and gobs of cow intestines. He had been taken prisoner by the Syrian Secret Police, left for dead in the Sahara Desert, and beset by hypothermia and heatstroke, using up two bicycles, 1,000 tire patches, and countless...