 These districts are important to tourism in Rimini.The city proper includes the historic centre, the four ancient boroughs of S. Giuliano, S. Giovanni, S. Andrea and Marina, the seaside district of Marina Centro and various modern districts—Celle, Marecchiese, INA Casa, V PEEP, Colonnella, Lagomaggio—and outer suburbs such as Padulli, Spadarolo, Covignano, Grottarossa and Villaggio 1° Maggio, located outside of the Adriatic Highway beltline.More outer suburbs are S. Giustina, S. Vito, Spadarolo, Vergiano, Corpolò and Gaiofana.