Stephen M. Silverman is a twenty-year veteran of Time Inc. and was the founding editor of People.com.
In his new book, "The Amusement Park: 900 Years of Thrills and Spills, and the Dreamers and Schemers Who Built Them," a never-before-told true story of amusement parks, from the middle ages to present day, and the colorful (and sometimes criminal) characters who are responsible for their enchanting charms.