geography
Squeezed entirely inside the city of Rome, one nation is so small that a brisk walk can cross its entire territory.
Vatican City covers only about 0.2 square miles, roughly 44 hectares, making it the smallest sovereign state in the world by a wide margin, with a resident population under 1,000. Its tiny territory sits entirely enclosed within the city of Rome, home to St. Peter's Basilica and the seat of the Catholic Church.
Monaco and San Marino are both genuinely small countries too, but neither is anywhere near as tiny as the Vatican — Monaco is roughly four times larger in area, and San Marino larger still, so both rank behind the Vatican in smallest-country lists.
Despite its minuscule size, the Vatican has its own postal service, media outlets, and even its own train station, functioning as a fully independent state in miniature.
geography
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