This trip, Guy's filling up on some serious soup. In Baltimore, the authentic Irish pub serving up seafood gumbo and a twist on traditional corned beef and cabbage. In Eugene, Ore., the joint dishing out 80 different kinds of soup, from a Middle Eastern take on lamb to Peruvian pork and quinoa. And in Cincinnati, the Vietnamese spot cranking out phenomenal pho and a bahn mi sandwich turned on its head.