Summary: In 1800, only 3% of the world's population lived in urban areas. By 2008, that number had swelled to more than half. Author Mark Kingwell says that despite this, we still do not understand how cities work, and the dynamic relationship between architecture and politics. Mark Kingwell joins Piya Chattopadhyay to discuss his book, "Concrete Reveries: Consciousness and the City," and how public place and political space cannot be separated.
