sentences:  San Marino Highway
  
  San Marino Highway (known simply as the "Superstrada" to locals) is a road from the castelli of Borgo Maggiore, to Domagnano, through to Serravalle and then the town of Dogana, where it enters Italy.Part of it was built over the now defunct Rimini-San Marino railway line, which was destroyed during the Battle of Rimini.