please empty your brain below

Oxford CIrcus is in the main (not Argyll Street) ticket hall, as there was a video of it being installed on the Guardian website,

The thing to do of course, would be to visit them in numerical order. Someone's even plotted a fast route for doing so ... how handy!
@geofftech - Presumably that route would be the hitherto closely guarded 'Tube Challenge' schedule? How do you feel about that?
The one at King's Cross St Pancras is in the old ticket hall near the top of the Northern line escalator.
Someone's found Embankment here - up in the ticket hall:

http://gardnersworld.wordpress.com/2013/02/09/hunt-the-labyrinth-2/
It follows Andi James's 2009 Route, rather than his current World Record route - he was consulted before this was posted and chose to reveal the previous route, rather than that which currently holds the record.

Might be an interesting way for some people to get an insight into the route-planning world. I wonder if there might be a batch of new people trying this route out....!

(a note, if so - the timetables have changed a number of times since then...)
It seems TfL is not telling station managers about this. My wife - who helps teach a course on sacred spirals in a City church http://www.spiritualitycentre.org/events/2012-09-01.html --
went to Cannon St underground station yesterday to ask about their labyrinth, wielding a copy of the Guardian article. The station manager was upset that no one from TfL had bothered to tell him about it.
It only takes a moment to spot that there is only one entry point, so I wonder why the entrance is marked. And with a red cross too - which usually means 'not this way'. Perhaps the idea is to bamboozle people before they even start.
@NLW - well there's a big difference between thinking you can do it, and actually doing it, but it doesn't help when someone serves up a previously winning route on almost on a plate for you!

Having said that, it doesn't tell you how the connections were done, and there are (for example) several ways between Walthamstow and the Central line, but which is the fastest?

I gather Andi gave permission, but I wouldn't have done, maybe on a route that was ten years old on a configuration of they network that was different, but not with one that still currently works ...
@Geoff I have hazy memories of the challenge being called Roving, and weren't the London Underground Railway Society involved in some way? I seem to remember seeing a full schedule many years ago, I'm not sure if it was in the LURS magazine or if the Roving Secretary sent it to me.

As someone who will never be able to do the challenge through ill-health I would be fascinated to see the full route, but can understand why participants want to keep the info private while there's a chance of re-using it to win the record back.
I have great admiration for anyone who spends so much time and effort on something that is ultimately so pointless as the tube challenge: it's what makes the world an interesting place to be. I did once do a "dry run" of the "all line" challenge - travelling (at least) one stop on each line - easily done in 50 minutes or so - just to get a taste.

For the full works, knowing the winning sequence is only the start: as has been said, timetables change (the latest change is very significant as the very limited service to Olympia now makes that a key factor), so do bus routes. Other factors are
- did the succesful trip actually go to plan, or did some problem or opportunity cause a chnage which make it a one-off that is unlikely to be poossible to replicate?
- knowing the station layouts, and exactly where in the train to be so as to be first down the exit from the platform when the train stops
- how to do the various out-of- station connections:
for example if the sequence includes "Finchley Central, Mill Hill East, West Finchley" does one get from the 2nd to the 3rd by backtracking to Finchley Central or is there a quicker way "cross country"?
If there's no bus, is it better to wait for one, or start running?
Knowing when to start must be crucial: too late and you won't finish, too early and you may waste time hanging around as services are sparse in the morning. Reading accounts of attempts, it seems that different attempts on different days, even starting using the same scehduled service, can be won or lsot depending on whether that first train leaves on time - as the clock starts when the doors close on that first train, the ideal is for it to leave so late that it almost, but not quite, misses the first connection.
The only published route I know is the fictional one in the novel "Tunnel Vision", but the protagonist has so many other problems, notably combining it with an insane treasure hunt, getting involved in a derailment, and having had no time to plan (not to mention a surprising ignorance, for someone supposed to be obsessed with the Tube, of where National Rail interchanges are possible and rolling stock types); starting at Morden - not ideal, as it means a special round trip has to be made to nearby Wimbledon later on; making an unnecessary trip on the Drain; and having a midnight deadline rather than close of service) that he would never have a chance of completing it in real life. An author's error does give him one piece of luck: finding an Underground official (other than the driver of the train he has just arrived on) at Richmond: the station is run by SWT (who in my experience never know anything about the strange trains with red faces and doors that run in and out of the far corner of their station)
I won't reveal whether the protagonist completes the itinerary the author gives him, but as the author made an error and it omits Chiswick Park, it wouldn't count anyway.
Victoria Station - is in the District line ticket hall by the ticket office, on the left as you exit the barriers and to the left of the stairs up to Victoria Street.

Westminster Station - is in the corridor from the circulating area to the eastbound Jubilee line (down from the district line escalators)
The Waterloo one is by the down escalator to the Bakerloo line (near the control room)










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