The Sofia Metro (Bulgarian: Софийски метрополитен, romanized: Sofiiski Metropoliten, also colloquially called Bulgarian: Софийско метро, romanized: Sofiisko Metro) is the rapid transit network servicing the Bulgarian capital city Sofia. It began operation on 28 January 1998. As of 2023, the Sofia Metro consists of four interconnected lines, serving 47 stations, with a total route length of 52.0 kilometres (32.3 mi) and also being among the top 20 of the most extensive European metro systems, ranking 19th as of 2020. The Metro links the densely populated districts of Lyulin – Mladost (M1 line – Red) and Nadezhda – Lozenets (M2 line – Blue), and serves the Sofia Airport. More information...
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