Geograph - photograph every grid square

Mark Wallinger, one of the UK’s leading contemporary artists, has created a major new artwork for London Underground to celebrate its 150th anniversary. The result, commissioned by Art on the Underground, is a multi-part work on a huge scale that will be installed in every one of the Tube’s 270 stations.

Wood Green is a London Underground station on the Piccadilly line. The station is between Turnpike Lane and Bounds Green stations and is in Travelcard Zone 3. It is located at junction of High Road, Wood Green and Lordship Lane. It serves Wood Green Shopping City and the nearby Haringey Council administrative complex as well as a densely populated residential area. It is also the closest tube station to the Alexandra Palace Venue. The station opened in 1932.
Grade II listed. Link

A few years ago I read a book by Mark Mason "Walking the lines" in which he walked the route of the London Underground lines, overground. I will repeat this visiting all 272 stations (some more than once). My route tries to follow the line of the railway as closely as possible, using footpaths and roads, deviations are made to make the walk more "interesting".

The London Underground system is also known as the "Tube". It is the oldest underground system in the world, the first section dating from 1863. The present system has over 250 miles of track and 272 stations. There are 11 lines covering Greater London, Essex, Buckinghamshire & Hertfordshire. Nearly half the system is above ground.
Wikipedia: Link
Transport for London: Link