Clintonville, a Columbus neighborhood situated four miles north of the Ohio Statehouse, began as a sleepy crossroads halfway between Columbus and Worthington. Beechwold, three more miles north, was a farm, then a zoo. Today they are bedroom communities but no longer sleepy. The beauty of their grassy knolls, springs, river, and wooded ravines inspired the creation of one of Ohio's best amusement parks, which in turn spurred housing and businesses...