Above: Victorian London around 1900 via mdavids2000 on Flickr
Now available on the iPlayer, two editions of Melvyn Bragg's In Our Time on "The History of the City".
The first programme takes the long view from Mesopotamia in the 8th Century BC up until the milestone of London passing 1 million inhabitants in 1801. The second episode, which aired this morning, focuses on the explosion of development from the 19th century to the present which has transformed both city centres and vast swathes of their surrounding landscapes.
Panelists include Peter Hall, Tristram Hunt and Ricky Burdett.
BBC Radio 4: In Our Time - The History of the City, Part 1 and Part 2