The smallest country in the world by land area is Vatican City (Holy See), an independent city-state enclaved within Rome, Italy. With a total area of just 0.49 square kilometers (0.19 square miles), it is smaller than many urban parks. Vatican City serves as the spiritual and administrative¹ center of the Roman Catholic Church, led by the Pope. Despite its tiny size, it holds immense global influence, boasting UNESCO-listed cultural sites like St. Peter’s Basilica and the Sistine Chapel². Its economy relies on donations, tourism, and sales of postage stamps. The population is around 800 residents, mostly clergy³ and Swiss Guards. As a sovereign entity⁴, it issues passports, mints euros, and engages in international diplomacy⁵.

世界上国土面积最小的国家是梵蒂冈城国（又称“圣座”），它是位于意大利罗马市内的独立城邦，总面积仅0.49平方公里（0.19平方英里），比许多城市公园还小。梵蒂冈是天主教会的核心，由教皇领导，虽袖珍却拥有巨大影响力。境内有圣彼得大教堂、西斯廷教堂等联合国教科文组织认证的世界文化遗产。经济依赖信徒捐赠、旅游业和邮票销售。常住人口约800人，多为神职人员和瑞士卫队。作为主权国家，梵蒂冈发行护照、铸造欧元并参与国际外交，其独特地位使其成为全球瞩目的“微型国家”典范。