After a decade of rampant crime, officials and citizens of Mexico City are trying to fight back
Winning the 2012 Olympics gives London cover to spend billions to keep the city competitive
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In Bangkok, every hour is rush hour. What it will take to unravel the city's epic traffic jams
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India's biggest city has to move its productive poor, carefully, to build needed infrastructure
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China's capital has made progress against pollution, but its Olympian effort still might leave some gasping
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