Sondrio is a station on Line 3 of the Milan Metro which opened on 12 May 1991, more than a year after the opening of the original trunk of the line, as a one-station extension from Centrale.
It was the final stop on the line until 1995, when Zara (Milan Metro) was opened.
[2] The station is located on Via Melchiorre Gioia at the intersection with Viale Sondrio, in the municipality of Milan.
The station is underground, built in a single tunnel with two trucks, and is sometimes flooded.
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