A new movie about Chicago; an unbelievable road diet in Buenos Aires creates 100 blocks of pedestrian space; and a tour of the vibrant city of Accra. Plus, another idea for solving San Francisco's housing crisis, and everyone's favorite cokehead mayor hits the late night talk show circuit, all in this week's Urban…

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Martin Luther King's 1956 tips for riding integrated buses, examining how design has helped an Alabama county, building instant cities in Accra and instant skyscrapers in Mumbai, and how two New York architects are tearing down the work of their former friends. It's all this week in our favorite Urban Reads.