Guy Fieri takes an eastward tour of Route 66: In Flagstaff, Ariz., a family style restaurant serving scratch made southwest favorites; in Albuquerque, N.M., an old gas station turned diner making classics their own way, like chicken-fried ahi tuna; and in Chicago, a joint that's been serving fried chicken on Route 66 since the 30's.

Guy Fieri drives in for a taste of what the locals love: In New Orleans, a family restaurant serving specials named after neighborhood streets; In Pittsburgh, a strip mall joint making Polish Haluski and Italian Polenta they call fried mush; And in Albuquerque, N.M., a local dive serving authentic New Mexican cooking, from sopaipilla with shredded pork to burritos with chicharrones.