The country's capital (pop. 4 600) also named San Marino sits on the western slope of the tri-peaked Mt. Titano . Cars are prohibited in the medieval town center but even if they weren't you'd want to explore the city by foot wandering along winding narrow streets lined with red-roofed stone houses medieval ramparts and somber fortresses. Sights include the Gothic Palazzo Publico and colorful fortress guards at Piazza della Liberta; the 14th-century church of San Francesco (which has paintings by Raphael Guercino and Bellini); and the Palazzo dei Valloni (museum art gallery and San Marino 's national library). The Neoclassical Basilica di San Marino preserves the remains of the town's stonecutter saint. A path runs from the basilica to the fortresses on Mt. Titano which include the 13th-century Montale (the smallest); the 10th-century Rocca Guaita (a prison until the 1960s); and the 13th-century Cesta (on the highest of the three peaks) which houses a museum of arms dating from the Middle Ages. The path offers a panoramic view of the surrounding countryside and Adriatic Sea too. Excursions can be made to the villages of Serraville (castle) and Valdragone (convent and church).