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World's Busiest CitiesSeries 1Episodes

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Back up to: World's Busiest Cities

  1. Delhi

    In Delhi, Anita Rani discovers how this growing city feeds itself.

  2. Moscow

    Uncovering the hidden systems running Moscow - a city forged by power and politics.

  3. Mexico City

    The hidden systems that run Mexico City, a sprawling megalopolis of over 22m people.

  4. Hong Kong

    Revealing the hidden systems running Hong Kong - the most vertical city on the planet.