Cast
Dan Snow, Anita Rani and Ade Adepitan reveal the hidden systems and armies of people running some of the greatest cities on earth.
24 January 2019
24 September 2007
17 September 2021
17 April 2011
6 May 2019
7 April 2013
25 July 2019
31 October 2010
15 July 2016
10 September 2009
9 June 2021
8 February 2015
15 January 2023
2 October 2016
10 April 2024
26 January 2017
23 August 2015
21 August 2022
23 November 2022
12 November 2019
30 August 2017