Guy Fieri tries out favorites from around the corner and around the globe. In Chicago, a Peruvian joint serving classic lomo saltado (sautéed rib eye with French fries mixed right in)-- and beef heart; In Oklahoma City, a local institution where the bread's baked fresh daily and the schnitzel's done like back in Germany; And in South Buffalo, a pub making the home town favorite: a sandwich called 'beef on weck.'