ocr: Tourism is the mainstay of San Marino's economy, contributing 60% of sovermment revenue. Tourist- related activities provide employment for 20% of the worktorce, who cater to the three million visitors annually who come to sample its folklore and museums, and to explore the tortifications of Mount Titano. The Titano tortresses of "la Rocca,' "la Cesta" and "Montale, - built during the Middle Ages, command superb views and are the main attractions. Many visitors to San Marino are day-trippers from Italy. The Republic's tourist industry is boosted by the close proximity of two international airp ...
