On August 16th, 2013 Geoff Marshall regained his Guinness World Record title (recognised on September 19th, 2013) as the person with the fastest time to visit all London Underground stations, doing it in 16 hours, 20 minutes, 27 seconds with partner Anthony Smith.
This was not Geoff's first attempt at the record, having previously held the title in 2004. Watch the video above to see photos and video clips from all of Geoff's 25 attempts. You can learn more about his achievement (but not the route) from his website, Londonist, and BBC.
You can also watch Geoff's Tube Secrets videos:
- Secrets Of The Bakerloo Line
- Secrets of the Central Line
- Secrets of The District Line
- Secrets of The Northern Line
- Secrets of The Victoria Line
Finally you can follow Geoff on twitter @geofftech.