Anyone can do a quick search for the largest subway systems in the world, but we explore which ones are actually the best. Which metros are impressive on their own merits and which are just big because they happen to be in big cities?
The TransitWorld YouTube channel is dedicated to all things transportation, with a particular focus on public transit in the developing world.
Patreon: www.patreon.com/TransitWorld
Contact: transitworldryan@gmail.com
