More than a century and a half after its founding, the Iowa State Fair is the state's central institution, event, and symbol. New Jersey has the Shore; Kentucky has the Derby; Iowa has the Fair. The humble Iowa State Fairground ranks alongside the Great Pyramids at Giza and the Taj Mahal in the best-selling travel guide 1,000 Places to See Before You Die. During its annual run each August, the fair attracts hundreds of thousands of visitors...