There are no major cities in Rome - Rome is a city, the capital city if Italy. (It you meant to ask - "What are the major cities of the ancient Roman Empire" - then ask this as a separate question).
the city of Vatican City is within the city of Rome
Vatican City is a country within Rome, the smallest country in the world.
Rome was a monarchy in tell they switched to a republic this happened in 510 B.C.
It is a state within Rome. It is in the center of the city.
A city state within a city is Vatican City which is located withing the city of Rome, Italy. Rome is a landlocked city.
No, it is not. It is within the city of Rome, Italy.
Vatican
Rome totally surrounds the country of Vatican City.
The Vatican city is within Rome.
Vatican City is the smallest country in Rome. It is an independent city-state enclaved within Rome, Italy.
Rome is a CITY so it has only one tiny city within it’s borders and that is Vatican City.
It is an independent country within the city of Rome.