5. San Marino, 61 square meters
San Marino, whose land area is 61 sq. Km, is the third largest country in Europe. This small country is completely surrounded by Italy. San Marino is also the oldest republic in Europe, founded in 301 AD. The population of San Marino is only 30,000 people.
The country has nine municipalities and the city of San Marino is the capital. San Marino is also one of the richest countries in the world in terms of GDP. San Marino is also famous for having more vehicles than the population. The economy of San Marino is mainly based on tourism, banking and textiles.
San Marino, officially the Republic of San Marino, also known as the Calmest Republic of San Marino, is an enclave microstate surrounded by Italy, located on the Italian peninsula on the northeastern side of the Apennine Mountains. Its size is just over 61 km2, with a population of 33,562. Its capital is the city of San Marino and its largest city is Dogana. San Marino has the smallest population among all members of the Council of Europe.
The country takes its name from Marinus, a stonemason originating from a Roman colony on the island of Rab, in present-day Croatia. In 257, Marin participated in the restoration of the city walls of Rimini after their destruction by Liburnian pirates. Marinus then established an independent monastic community on Monte Titano in 301 CE; thus, San Marino claims to be the oldest sovereign state in existence, as well as the oldest constitutional republic.