San Marino Highway
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San Marino Highway (known simply as the Superstrada to locals) is the main road in San Marino. It travels through the castellos of Borgo Maggiore, Domagnano, and Serravalle and even into Italy.Part of it was built over the now defunct Rimini-San Marino railway line,a carriage of which can still be seen from the highway.It is owned by the Sammarinese government.