Here's a collection of links to sites you may find useful when planning your own tubewalk. Planning Your Own Walk Transport for London Google Maps Wikimapia Bing Maps Ordnance Survey maps Wikipedia's geographical Tube maps Met Office climate averages for the UK Tube Facts and History Disused stations on London's Underground Transport for London's key facts Transport for London's line facts Clive's UndergrounD Line Guides London Underground History 50 things you never knew about the London Underground Tubeprune's London Underground statistics Other Tubewalkers Neil Johan: London Photo Project 11 December 2007 – 12 May 2008 Laura Tomlinson and Tim Moss: The Next Challenge: Running the Tube 10 January – 9 September 2010 Mark Mason: Walk the Lines June – December 2010 Gill Salmon: Gill Walks the Underground Lines Overground 30 October 2011 – 28 October 2012 Ian Wright: Randomly London v. The Tube 11 September 2012 – 24 August 2014 Other Interesting Links London Tubewalkers Community The Tube Challenge To The End Of The Line