Perhaps the most famous Roman ruins in Italy are those of Rome and Pompeii, but there are many others. The Italian peninsula was long the heartland of the Roman world, and it is full of Roman ruins and cities often overshadowed by Rome and Pompeii.

One of the forgotten Roman cities in Italy is Aosta, called the "Little Rome of the Alps." It is particularly famous for its rich collection of archaeological sites and is something of an open-air museum. Aosta is one of the many well-preserved ancient Roman cities worth exploring across the former Roman world.