Let's have a great time..#londontravel #undergroundstation #england

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The fastest time to travel to all London Underground network stations is 15 hr 45 min 38 sec, and was achieved by AJ (full name and nationality withheld) and Steve Wilson (UK) in London, UK, on 21 May 2015.

Steve is a veteran of this record – he was a joint record holders in 2011 and 2009.

Source: http://www.guinnessworldrecords.com/world-records/fastest-time-to-travel-to-all-london-underground-stations