From Ohio History Central
Circleville also has become world famous for its annual pumpkin show. Begun in 1903, the festival attracts more than 300,000 people a year. It is currently the sixth largest festival held in the United States, and since organizers charge no admission fee, the festival has become known as the "Greatest Free Show on Earth." The Circleville Pumpkin Show provides a showcase for Ohio's farmers and their products.