Downtown’s exact boundaries vary depending on whom you ask, but a widely accepted definition is the roughly two-square-mile area between Seventh Avenue and Seventh Street and McDowell and Buckeye Roads. Vestiges of the original 19th-century town remain in Heritage & Science Park, where one historic home is now a museum and others have been transformed into food and beverage establishments — notably, Pizzeria Bianco, the flagship of Chris Bianco, a James Beard award-winning chef.