San Marino square km. Population: Enigmatic UNESCO heritage-listed San Marino towers over the surrounding Emilia Romagna near the Adriatic Coast of Italy. The enclaved microstate is the third smallest country in Europe, and the fifth in the world.
Fortress of Guaita - San Marino republic, Italy. One of Italy’s oldest fortress towers When exactly the first of the three fortress towers, known as Rocca or Guaita, was built, is unknown. Construction presumably began in the century.