Line 5 is a 12.8-kilometre (8.0 mi) underground light metro line in Milan, Italy. The line is part of the Milan Metro and serves the north-eastern suburb of the city. The first stage of the line, covering the 4.1 kilometres (2.5 mi) from Bignami to Zara opened on 10 February 2013. The 1.9-kilometre (1.2 mi) second stage, from Zara to Garibaldi FS, opened on 1 March 2014.