Cyclotourism has recently risen to prominence with growing national media coverage and thousands of participants taking to America's roadways on two wheels and under their own pedal power. But the concept is not new. More than a century ago, George B. Thayer took his own first "century," or one-hundred-mile bicycle ride. The Two-Wheeled World of George B. Thayer brings to life the experience of late nineteenth-century cycling through the heartfelt...