Underground alt=|thumb|Milan Metro is the largest rapid transit system in Italy in terms of length, number of stations and ridership; and the fifth longest in the European Union and the eighth in the Europe. The Milan Metro is the rapid transit system serving the city and surrounding municipalities. The network consists of 5 lines (M1, M2, M3, M4 and M5), with a total network length of , and a total of 121 stations, mostly underground. It has a daily ridership of 1.15 million, the largest in Italy as well as one of the largest in Europe.
underground alt=|thumb|milan metro is the largest rapid transit system in italy in terms of length number of stations and ridership; and the fifth longest in the european union and the eighth in the europe the milan metro is the rapid transit system serving the city and surrounding municipalities the network consists of 5 lines (m1 m2 m3 m4 and m5) with a total network length of  and a total of 121 stations mostly underground it has a daily ridership of 115 million the largest in italy as well as one of the largest in europe