Winter won’t stop you from getting out and about, so you can go drive around and view historic landmarks like the Colosseum, the Arch of Constantine and the Pantheon, all in Rome. In Naples, Capodimonte Royal Palace and Museum houses one of Italy’s finest art collections. There’s also Teatro di San Carlo, one of Europe’s most celebrated opera houses. Castel Nuovo’s architecture reflects the eras of the French, Spanish, Austrian and Aragonese kings who lived there.