"Thrills and Spills": The 900-year history of amusement parks
The success of Disneyland helped launch the modern theme park industry -- but the concept of the amusement park dates back centuries. The story is detailed in the new book "The Amusement Park: 900 Years of Thrills and Spills, and the Dreamers and Schemers Who Built Them" by Steve Silverman. Don Dahler reports.