The BBC has amazing coverage of emerging urban trends worldwide. For more links, Read More.
Moving to the city: Rural migrants across the world speak about life in the 'big smoke'
The world in 2050: Leading experts give us their forecasts for the urban future
Access all areas: Urban athletes defy city limits to reclaim streets and rooftops
Paying the price: Comparing the environmental cost of urban and rural life
Making Cities Work: Detroit, Moscow, China, Mexico City
Pictures: Hidden views of cities from the people who live there
Urban explosion: Trace the past and future expansion of the world's biggest cities with an interactive map.