Marion’s Piazza

From its start in 1965, this dine-in dynasty has become the epitome of Dayton-style pizza while hosting a slew of celebs—we’re talking Zsa Zsa Gabor, dahling! Since 1938, Marion Glass had owned an ice cream and sandwich shop in Dayton, Ohio, but when he spotted increasing competition from burger-toting carhops, he sought the next big…