What will the cities of the future look like, and will we like living in them? Vast mega-cities are emerging, notably in the developing world, as people migrate towards urban centres in search of work. Cities in the richer world also need to find ways improve the quality of life for their inhabitants. How should urban planners cope with these pressures and develop strategies for the future? Owen Bennett Jones and his guests discuss how best to make these urban spaces the best possible places to live and work. Photo Credit: Thinkstock