Urban rail, [[NonIndicativeName though it's not always under ground]]. [[JustForFun/IThoughtItMeant Not the sandwich shop]] (though you can find said shops in some of such places).

Many of the great cities of the world have subway systems, metro systems, underground systems, what have you--they're trains underground is what counts. They tend to be part of the lifeblood of the city, an element of its character, a point of pride (or occasionally shame) for its citizens, and a record of its history. They develop their own unique cultures and quirks. In short, they are kind of awesome...which is why we made this index.

!! Subway systems of the world
%% The examples should either link to an article about the system or not at all. Linking to the city doesn't really cut it.

[[index]]
!!! Africa
* Algiers Metro
* Cairo Metro

!!! Asia-Pacific
* UsefulNotes/AlmatyMetro
* Bangkok [=SkyTrain=] and Metropolitan Subway
* Chinese Subways
** Beijing Subway
** UsefulNotes/HangzhouMetro
** Shanghai Metro
** Shenzhen Metro
* UsefulNotes/DelhiMetro
* Hong Kong MTR
* Jakarta MRT
* Melbourne Metro
* Osaka Subway
* Seoul Metropolitan Subway
* Singapore MRT
* UsefulNotes/SydneyTrainsMetroAndLightRail
* UsefulNotes/{{Dankal}} (Tel Aviv; actually a tram with an underground section, though a proper metro is planned as part of the system)
* UsefulNotes/TokyoSubways (Tokyo Metro, Toei Subway, and other lines frequently used)

!!! Europe
* UsefulNotes/AmsterdamMetro
* UsefulNotes/MetroDeBarcelona
* UsefulNotes/BerlinUAndSBahn
* UsefulNotes/BrusselsMetro
* [[UsefulNotes/BudapestMetro Budapest Metro (and other public transportation)]]
* UsefulNotes/CopenhagenStogAndMetro
* UsefulNotes/FrankfurtUAndSBahn (actually operates as light rail, known as "Stadtbahn" in German)
* UsefulNotes/GlasgowSubway
* UsefulNotes/HamburgUAndSBahn
* UsefulNotes/HelsinkiMetro
* UsefulNotes/LisbonMetro
* UsefulNotes/TheLondonUnderground
* UsefulNotes/MetroDeMadrid
* UsefulNotes/MilanMetroAndLineeS
* UsefulNotes/MoscowMetro
* UsefulNotes/MunichUAndSBahn
* UsefulNotes/NurembergUBahn
* UsefulNotes/NovosibirskMetro
* UsefulNotes/OsloTBane
* UsefulNotes/LeMetropolitain (Paris)
* UsefulNotes/PragueMetro
* UsefulNotes/RomeMetro
* UsefulNotes/RotterdamMetro (includes Randstad Rail, which is light rail)
* UsefulNotes/SaintPetersburgMetro
* UsefulNotes/StockholmMetro
* UsefulNotes/TurinMetro
* [[UsefulNotes/TyneAndWearMetro Tyne & Wear Metro]] (Newcastle—upon―Tyne & Sunderland; actually light rail)
* UsefulNotes/ViennaUAndSBahn
* UsefulNotes/WarsawMetroAndUrbanRail (covering the Warsaw subway, SKM and Warsaw Commuter Railway)

!!! The Americas
* Brasília Metro
* Buenos Aires Metro
* Caracas Metro
* Lima Metro
* Medellín Metro
* UsefulNotes/MexicoCityMetro - second biggest Metro in the Americas based on ridership (the biggest is in NYC)
* UsefulNotes/MontrealMetro
* Panama City Metro - opened in 2014 the [[/index]][[OverlyNarrowSuperlative oldest Metro in mainland Central America]]
* Rio de Janeiro Metro
* Santiago Metro
* São Paulo Metro
* [[index]]UsefulNotes/SubwaysOfTheUnitedStates
* UsefulNotes/TorontoSubway
* Tren Urbano (San Juan, Puerto Rico)
* Vancouver [=SkyTrain=]
[[/index]]

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