Answer: Vatican City is the smallest country in the world.
There are 195 countries in the world. 193 countries are member states of the United Nations and 2 countries that are non-member observer states. Those non member observer states are the Holy See and the State of Palestine. Vatican City is the smallest country among all 195 countries in the world. It is situated inside the Rome, Capital of Italy. The area of Vatican City is only 0.44 Square Kilometer. Population of this country is 807 till 25 April, 2023. Most interesting thing is The Holy See and Vatican City are same country. In the list of countries if Vatican City is listed then Holy See will not be there and if Holy see is listed then Vatican City will not be there. Although Vatican City is used when referring to a country while Holy See is used when referring to the area governed by the Bishop of Rome (Pope). But if considered as country, then Vatican City and Holy See are not two different countries. Vatican City and Holy See is the Same country.

When Vatican City was established?
Vatican City was formed as it is now as a sovereign nation after signing of the Lateran Pacts in 1929.
Lateran Pact of 1929, also known as Lateran Treaty was signed between Italy and the Vatican. Benito Mussolini on behalf of Italy government and cardinal secretary of state Pietro Gasparri for the papacy (meaning of papacy is the office or authority of the Pope) signed the treaty and it was approved by the Italian constitution in the year 1948.
Who is the administrative head of Vatican City?
The Pope is the head of the Vatican City State since the eighth century. He assigns executive authority to the President of the Pontifical Commission (A pontifical commission is a committee of Catholic experts meet according to the wish of the Pope for some specific reasons ) for Vatican City.
Why Vatican City is not listed as a country in the list of UN?
Vatican City does not support its citizen like the other nations. It only act as base for the central administration of the Roman Catholic Church. So instead of Vatican City The “Holy See” is considered as a “nonmember state” in the UN.
Some mesmerizing photos of Vatican City







Why Vatican city is the smallest country in the world, not Seeland? What is Seeland?
Sometimes it is told that Seeland is the smallest country in the world. It is situated in the British territory and has population of only 27 people. Sealand has the Guinness World Record as the smallest area to claim as nation status. Please note that the Guinness World Record is the smallest area to claim as nation and this Guinness World Record is not the smallest country in the world officially. It has own Constitution, Flag, Currency, Passport and national anthem. But no country in the world accept it as a nation. So reality is, it not a country officially. So there is no doubt that officially Vatican City is the smallest country in the world.

Picture of See land.