FGC network connects Barcelona with municipalities via Plaça Espanya and Plaça Catalunya. S1 runs from Plaça Catalunya to Terrassa, with 22 stations. S2 connects Plaça Catalunya to Sabadell, with 24 stations. S3 runs from Plaça Catalunya to Sant Vicenç dels Horts, with 15 stations. S4 runs from Plaça Catalunya to Olesa de Montserrat, with 23 stations
BTS operates two main lines: Sukhumvit (green) and Silom (blue). Network includes 52 stations, with new Gold Line connecting Krung Thonburi to Khlongsan. Trains run 05:00-24:00, every 3-5 minutes. First trains depart at 05:15 on Sukhumvit, 05:30 on Silom
Munich Metro began planning in 1953, construction started in 1967 for 1972 Olympics. First commercial route opened in 1971 as U6 Line, covering 12 kilometers. System now spans 103 kilometers with 96 stations and 8 lines. Daily passenger capacity reaches 1.3 million
First metro system in Portugal, operating since 1959. System spans 43.3 km with 55 stations across four lines. Carries 154 million passengers annually. Operates from 6:30am to 1:30am daily. Fare is 1.40 euros per journey
Tokyo Metro began operations in 1927 as Tokyo Underground Railway. System has 9 lines, 179 stations and 195.1 km total track length. Daily ridership reached 6,307,390 passengers in 2010
Operates since 1988 with 11 lines and 161 stations. Central station 7 minutes from Düsseldorf International Airport. No turnstiles, no air conditioning or driverless trains. Operates 4:15-12:00 AM weekdays, 4:15-2:30 AM weekends