1. The Vatican City is the capital of the Vatican, the center of the world's Catholicism, and the seat of the Holy See. It is located on the Vatican Heights in the northwest corner of the Italian capital Rome. There are three high walls in the north, west, and south to separate the city of Rome, while St. Peter's Square in the east is unimpeded with the city of Rome.
 2. In this urban area with an area of only 0.44 square kilometers, a population of about 800, and a permanent population of only 500, and a population density of about 3181 people/square kilometers, there are a number of unparalleled works of art and architectural masterpieces. The cathedral built on the tomb of St. Peter the Apostle is the center of the city and the largest religious building in the world.
 3. In 1984, the United Nations Educational, Scientific and Cultural Organization listed the Vatican City on the World Cultural and Natural Heritage List.
 4. On December 26, 2019, it ranked 258th in the 2019 Global Top 500 Cities.
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