Charlie Parker's (Springfield, Ill.) • Virginia Diner (Wakefield, Va.) • Tecolote Cafe (Santa Fe, N.M.)Guy Fieri journeys from the East Coast to the southwest for regional specialties including classic Southern cooking at a landmark diner in Virginia; the Horseshoe Sandwich at a steel Quonset hut in Illinois; and red and green chili, the signature dishes of New Mexico at a joint in Santa Fe.