The Milan Planetarium (in Italian, Planetario di Milano) is the largest and most important planetarium in Italy. It is located in the Gardens of Porta Venezia, in the Porta Venezia district of Milan. It was established in 1930, and has been in operation since then. The scene is created by a Zeiss IV star projector, which has been in use since 1968. The Planetarium has about 100,000 visitors a year. It also serves as the headquarters of the Circolo Astrofili di Milano, the oldest and most important amateur astronomy club in Milan.