How 10 of the world's most famous subway systems compare, from Dubai to New York City

• Public transportation systems vary from city to city.
• We selected 10 of the most famous metro systems in the world and compared them by size, length, operating hours, and ticket cost.
• See how subway systems like the ones in New York City, Paris, London, and Tokyo stack up.

Public transportation systems vary greatly between major world cities.

At one end of the spectrum, the Dubai Metro comprises just two lines and 49 stations. At the other end, the railway system in Seoul, South Korea, comprises nearly 300 stations and stretches miles beyond the city limits.

We've selected 10 of the most famous metro systems in the world and compared them by size, length, operating hours, and cost of a single ticket.

Here's how they stack up:

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