Home of five US Presidents, a number of famous American authors, and the flying Wright brothers, Ohio is also one of the top manufacturing employers, with significant production in transportation equipment, machinery, and metal products. Bordered by Lake Erie, Pennsylvania, West Virginia, Kentucky, and Michigan, the Buckeye State counts Cincinnati, Columbus, and Cleveland among its largest cities. The Rock and Roll Hall of Fame, the Dayton Aviation Heritage National Historical Park, and the Pro Football Hall of Fame are major tourist draws.