Rome
Capital of Italy since the Italian unification about 150 years ago, Rome was especially the capital of an empire during about 1000 years.
Its architectural is unique, very varied and beautiful, with its important ancient vestiges such as the Colosseum and the Roman Forum, its monuments and places of the rebirth and modern ages, streets of the middle-ages as Trastevere district ... an immense museum in open air.
Few days are enough to cross aver its most touristics places, but it takes several weeks to have a right measurement of its richnesses.
More about Rome : Places of interest, pictures, hotels in Rome
The region of Rome doesn't miss of interest : Lazio places, in particular, Ostia antica : the port of ancient Rome.