Vatican City is known also as Stato della Citta del Vaticano, which is Vatican City in Italian.
View page
Vatican City is all that remains of the Papal States.
View page
Vatican City is an independent country, there are around 800
people living there and the country itself is around a mile, it is
completely surrounded by Rome, Italy.
View page
This is because Vatican City is sovereign nation, established
through the Lateran Treaty of 1929.