response: Perhaps the reason is that it is its own sovereign state but it is also located in Rome, a city.
original_response: I wouldn't be surprised if it had it's own block of zipcodes, as it is an independent city state, sovereign from the rest of Rome.
history: My family wants me to go to Rome with them.  I hate to look like a tourist, though. Well, Rome is one of the most traveled to city in Europe, only behind London and Paris. Millions of tourists go there a year on average. Oh I didn't realize that.  Maybe I SHOULD go then.  What is there to see in Rome? There is the Colosseum and Vatican Museums. Both are part of the top 40 most visited locations in the world. That sounds like fun but perhaps a bit crowded if they're so visited. I always heard the Vatican is special but why?
knowledge: Vatican City (; ; ), officially Vatican City State or State of Vatican City (; ), is a sovereign state located within the city of Rome.