Montegiardino
Montegiardino is one of the 9 communes or "castelli" of San Marino. 910 people live there (October 2013) in an area of 3.31 km². It is the smallest municipality of the country by population.
It is next to the San Marino municipalities Fiorentino and Faetano and the Italian municipalities Monte Grimano and Sassofeltrio.
It is home to the University of the Republic of San Marino, the country's only university.