Labyrinth is a 2013 artwork by the British artist Mark Wallinger which marks the 150th anniversary of the London Underground. The artwork consists of 270 enamel plaques of unique unicursal labyrinth designs, one for every London tube station, each is numbered according to its order in the route taken by the contestants in the 2009 Guinness World Record Tube Challenge. In October 2014, Art/Books published Labyrinth: A Journey Through London's Underground by Mark Wallinger, a comprehensive photographic book of all 270 labyrinth designs in situ in the Underground stations.
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- Coysh, Louise (6 October 2014). Labyrinth: A Journey Through London's Underground by Mark Wallinger. Art / Books. ISBN 978-1-908970-16-9.
- Brown, Mark (7 February 2013). "Tube celebrates 150th birthday with labyrinth art project". The Guardian. Retrieved 9 February 2013.
- "Art/Books – Publishers of fine illustrated books – Labyrinth". artbookspublishing.co.uk.