12 data maps that sum up London – BBC November 13, 2014 by Fulcrum A new collection of data maps of London reveals a city heaving with information. A quick quiz question for you. How many football pitches could fit inside the Greater London boundary? Well, 220,000 of them would fill the space between Cockfosters and Croydon, Heathrow and Hornchurch. BBC Magazine. 12 November 2014 FulcrumShareTweetShare