Ohio: Tony Stewart's Dirt Track
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In 2004, two-time NASCAR champ Tony Stewart bought Eldora Speedway, a car-racing mecca just outside Rossburg, Ohio, and vowed both to preserve it as a shrine to a bygone America and to make it one of the most active arenas on the dirt-track circuit. Opened in 1954, the high-banked, half-mile clay oval got a lift when Stewart stepped in. Now more than a dozen different classes of racing pass through in the course of a season, which spans most weekends from April to October. There are lightning-fast sprint cars, boxy late models, Baja-style TORC trucks, go-karts, and this summer, for the first time, NASCAR Camping World truck racing. A night at Eldora is dusty and loud, and the food is greasy, but a picnic on the grass at turn two offers the most comfortable view of car racing anywhere in the U.S.

Getting there: From the Dayton airport, drive an hour to Rossburg. Eldora Speedway hosts races most weekends in its operating season.