I visited this WHS several times. Rome is rightly known as the Eternal City. It can keep you busy for a whole month of sightseeing and you would still be missing something! Needless to say you cannot miss the Colosseum, Pantheon, Trajan's Column, Fori Imperiali, Fontana di Trevi, Piazza di Spagna, and St. Peter's Basilica. Not only one of Italy's top WHS but indeed one of the world's top WHS!