11th Street Diner (Miami Beach, Fla.) • Bobo Drive In (Topeka, Kan.) • Little Tea Shop (Memphis, Tenn.)Guy Fieri searches out some classic joints including a 60-year-old Pennsylvania Diner transplanted to South Beach; in Topeka, Kan., a drive-in straight out of the 50s; and the oldest restaurant in Memphis, a classic southern tea room from 1918.