As engines of growth and social integration, cities are the magnets for more than half the world's population. "Understanding Cities" is a five-part public debate addressing the complexities involved in designing and running the powerhouses of today's global economy. This series will address the most provocative ideas in city-making, including environmental responsibility and climate change, social cohesion and the built form of cities.

What is the new administration's vision for London? Presentation and debate about how to design and manage the powerhouses of the global economy assesses London's development compared to the megacities of the world.