First Russia, 1707.5 square kilometers,
Second Canada, 997.1 square kilometers,
Third China, 960.1 square kilometers,
The fourth United States, 936.4 square kilometers,
The fifth country, Brazil, 854.7 square kilometers,
The sixth country, Australia, 774.1 square kilometers
Extended information
The Vatican is the smallest country in terms of geographical area. It is located near Rome, Italy, and has also become the country of China. Vatican City means "the place of the prophets" in Latin.
It is also the smallest country in the world in terms of territory and population, with a land area of ??only 0.44 square kilometers. Since it is bordered by Italy on all sides, it is called "China". It is the center of Catholicism in the world - the seat of the Holy See headed by the Pope, and the center of faith for one-sixth of the world's population.
Since most of the administrative agencies of the Holy See, the Holy See, are located in the Vatican City, when people use the term "Vatican", they may refer to the Vatican City State, the "Vatican" region, and the Holy See. The seat, or the seat of the pope, depends on the occasion in which it is used. Although the Vatican does not enact any laws regarding official languages, Italian is the most commonly used. Due to the large number of Catholic believers around the world, the Vatican has as important an influence as the United States, China, and Russia in political and cultural fields.
Reference: Baidu Encyclopedia