San Marino, officially the Republic of San Marino (/sæn məˈriːnoʊ/ san-mə-REE-noh; Italian: Repubblica di San Marino), also known as the Most Serene Republic of San Marino (Italian: Serenissima Repubblica di San Marino), is an enclaved microstate surrounded by Italy, situated on the Italian Peninsula on the north-eastern side of the Apennine Mountains. Its size is just over 61 km² (24 sq mi) with an estimated population of about 32,000 with its capital being the City of San Marino and its largest city being Dogana.