Introduced to Italy by occupying soldiers after World War II, speedway is most popular around the north-east of the country. The regions of Friuli-Venezia Giulia, Trentino-Alto Adige/Südtirol, Lombardy and Veneto host race meetings with the latter also hosting the Speedway Grand Prix of Italy in the town of Lonigo. The most successful speedway rider from Italy was Armando Castagna. Castagna was the only Italian professional speedway rider in the history of the sport, and qualified five times for an Individual World Final. Another former rider, Giuseppe Marzotto makes the GM speedway engines.