subway systems of the world, presented on the same scale

London

Transport for London

New York

MTA/PATH

Tokyo

TRTA

Seoul

Seoul Metro

Moscow

Moskovskoe Metro

Paris

RATP

Mexico City

El Sistema de Transporte Colectivo

Chicago

CTA

Berlin

BVG

Stockholm

SL

Boston

MBTA

Washington, DC

WMATA

Saint Petersburg

Petersburgskiy Metropoliten

Santiago

Metro de Santiago

Montreal

STM

Los Angeles

MTA

Madrid

Metro de Madrid

Singapore

SMRT

Philadelphia

SEPTA

Osaka

Osaka Municipal Transportation Bureau

Munich

MVG

Hamburg

Hochbahn

Atlanta

MARTA

Athens

Attiko Metro

Barcelona

TMB

San Francisco

MUNI/BART

Toronto

TTC

Hong Kong

MTR

Vancouver

TransLink

Beijing

Beijing Subway

Vienna

VOR

Budapest

BKV

Marseille

RTM

Brussels

STIB-MIVB

Buenos Aires

Metrovías