For thousands of years people have been drawn to cities for trade, learning, religion, power and entertainment. From Ancient Uruk and Rome through to modern megacities such as New York and Shanghai, cities have shaped the way people interact and driven human progress forward.

To discuss in more detail how cities have shaped history, bestselling writer and author of a new book Metropolis: A History of the City, Humankind's Greatest Invention, Ben Wilson, joins Andrew Carter for this episode of City Talks.

He argues that with over half the world's population now living in cities, and cosmopolitanism under attack from nationalist sentiment, it has never been more important to understand cities and the role they have played in making us who we are.