***The Vatican is located within Rome; that is the physical location. Protestations notwithstanding! ***
It’s across the Tiber.
***But back to a question posed earlier that you have refused to answer: what is the Biblical basis for the papacy?***
Matthew 16:
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8 When Jesus went into the region of Caesarea Philippi 9 he asked his disciples, “Who do people say that the Son of Man is?”
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They replied, “Some say John the Baptist, 10 others Elijah, still others Jeremiah or one of the prophets.”
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He said to them, “But who do you say that I am?”
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11 Simon Peter said in reply, “You are the Messiah, the Son of the living God.”
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Jesus said to him in reply, “Blessed are you, Simon son of Jonah. For flesh and blood 12 has not revealed this to you, but my heavenly Father.
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And so I say to you, you are Peter, and upon this rock I will build my church, 13 and the gates of the netherworld shall not prevail against it.
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I will give you the keys to the kingdom of heaven. 14 Whatever you bind on earth shall be bound in heaven; and whatever you loose on earth shall be loosed in heaven.”
###The Pope is the steward of Jesus. That is the significance of the keys.
And it's within the boundaries of Rome. The Via Cipro runs to the West of Vatican City, and that is within the city of Rome. Not to mention it wasn't it's own "country" until 1929.
Rome surrounds the Vatican; you cannot enter the Vatican without passing through Rome.