Naples, home of pizza, offers an unmissable food tour. Don't miss the Sansevero Chapel with the Veiled Christ and a boat tour to the Blue Grotto. Spaccanapoli, the Archaeological Museum, Piazza Plebiscito and the Royal Palace are essential stops. A visit to Naples Underground and the Umberto Gallery is also interesting . Finally, consider a trip to Pompeii, Vesuvius, Reggia di Caserta or Amalfi Coast.