Here my 2 cent about Naples area.

You can visit Naples and surroundings. The historical center of Naples is listed as the UNESCO trust. There are many nice squares, you can walk through Spaccanapoli street (many handicraft shops), let visit churches, the Archeological museum (you'll find pieces from Pompei and Ercolano) and Capodimonte Royal palace that is a museum now (it was the countryside king's palace). You can visit the city king's palace in Plebiscito square, the Maschio Angioino castle, the St. Martino monastery (now is a museum) located up to an hill with a wonderful view upon the gulf.

Moreover you can visit under grounds of Naples: the Greek and Roman aqueducts, the entrance of Napoli Sotterranea is located on the left side of St. Paolo Maggiore church. There is an old roman road with shop ruins just under St. Lorenzo Maggiore church (entrance is into the cloister) and there are some catacomb near Capodimonte too. Under the main church (Duomo) there are some ruins of the previous church. Don't forget to visit the really nice St. Chiara's cloister (1700) near Gesu' Nuovo square. Around Naples you can visit the well know archeological site of Pompei or Ercolano ruins (you can get to both town by the Circumvesuviana railway http://www.circumvesuviana.it). Actually, I prefer Ercolano because it is more preserved than Pompei and it is less visited by tourists than Pompei even though Ercolano is smaller than Pompei. In Pozzuoli (Cumana railway from Naples) you can visit the Solfatara where sulfur vapors come from the ground: it is a manifestation of the volcano Vesuvio. Sometime the Solfatara was used to make movie with scene of inferno! You can visit the archeological digs of Cuma with the Sibilla Cumana cave.

In Naples you can have the best pizza of the World!!!

Enjoy our trip.

Ciao, Marco (Milan, Italy).