Nice that you loved Italy.
I did myself a trip in 2001 from north to south , all of the major cities, and always used the train. It was delightfull each time i was going to a station, i always benched. When i had nothing to do, i was benching, especially in Roma, Termini station, where there was trains and subways. The king back then was Poison, with at least 1 piece each time i was taking the subway.
Napoli was nice too, with the subway going to all the smaller cities around ( sorento is there, i went there its verry nice), and even Pompei... It was nice getting on a train pieced with all the tourists, going to visit the ruins ( if i remember well the name of that line circum something line)
Even in Sicilia, there had pieced trains, and i took a boat coming from the continent to the island, with my train in it, with some3 or 4 lines too. So i was benching in the boat, with the trains inside.
Anyway... a fucking nice trip...beautiful country+ graffiti on trains = success trip.
I doubt that its still that bombed cause i heard they were buffing more theses days... but i guess you can still be impressed.