San Marino Historic Centre and Mount Titano covers 55 ha, including Mount Titano and the historic centre of the city which dates back to the foundation of the republic as a city-state in the 13th century. San Marino is inscribed as a testimony to the continuity of a free republic since the Middle Ages. The inscribed city centre includes fortification towers, walls, gates and bastions, as well as a neo-classical basilica of the 19th century, 14th and 16th century convents, and the Palazzo Publico of the 19th century, as well as the 18th century Titano Theatre. The property represents an historical centre still inhabited and preserving all its institutional functions. Thanks to its position on top of Mount Titano, it was not affected by the urban transformations that have occurred from the advent of the industrial era to today.