Piazza Guglielmo Marconi and Via Roma (Cinque Terre) Vernazza's main cobblestone street, Via Roma, begins at the seaside square of Piazza Guglielmo Marconi, and moves through the town's historical city centre up to the train station. Throughout the climb, the surroundings becomes more and more forested with vineyards and lemon groves. Address: Via Roma Vernazza SP Italy