1. Living in the City

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. 2 June 2011. 60 min

Andrew Marr looks at how people live in five of the world's biggest megacities: London, Dhaka, Tokyo, Mexico City and Shanghai.

2. Cities on the Edge

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. 9 June 2011. 60 min

Andrew Marr takes a look at safety and security, two of the biggest challenges faced by each and every metropolis, visiting Tokyo, London and Mexico City.

3. Sustaining the City

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. 16 June 2011. 60 min

Andrew Marr looks at transport routes and finds out how the world's megacities stay fed, and he joins Mexico City's traffic cops in the air.