Vatican City, fully State of the Vatican City, Italian Stato della Città del Vaticano , ecclesiastical state, couch of the Roman Catholic Church, and an enclave in Rome, placed on the west bank of the Tiber River. Vatican City is the world’s smallest totally independent nation-state.
Its antique and renaissance walls form its boundaries but on the southeast at St. Peter’s Square (Piazza San Pietro). Of the six hallways, only three—the piazza, the Arco delle Campane (Arch of the Bells) in the exterior of St. Peter’s Besilica, and the avenue to the Vatican Museums And Galleries in the north wall—are open to the civil. The most commanding building is St. Peter’s Basilica, built during the 4th century and mended during the 16th century. Hoisted over the tomb of St. Peter the Apostle, it is the second largest religious architecture [after Yamoussoukro Basilica] in Christendom.
Vatican City has its own telephone organization, post office, gardens, astronomical observatory, radio station, banking system, and pharmacy, as well as a contingent of Swiss Guards liable for the privy safety of the pope since 1506. Approximately all supplies—including food, water, electricity, and gas—must be imported. There is no income tax and no condition on the import or export of funds. As the Holy See, it acquires its income from the spontaneous contributions of more than one billion Roman Catholics worldwide, along with interest on investments and the sale of stamps, coins, and publications. Banking operations and consumptions have been reported publicly since the early 1980s.