The oldest metro in the world, though, is the London Underground, which opened in 1863.
Dating the rocks in London doesn't tell you the age of the London Underground.
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Those represented include BAE Systems, Rolls-Royce, the London Underground and the English Premier League.
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It is about a 30-minute ride from there to Stratford on the London Underground.
There are also concerns over passport document fraud following the London Underground bomb attacks.
There were also problems on the London Underground's Jubilee Line because of signal failure at Neasden.
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In the longer term, emissions will be cut by switching the London Underground to renewable energy.
TfL said it planned to introduce the technology to the London Underground Tube system at a later point.
Jon James, executive director of broadband at Virgin Media, said the London Underground wi-fi had been "an incredible success".
Other recommendations include the London Underground running later on Friday and Saturday nights, and the implementation of a 24-hour Crossrail.
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The London Underground makes getting around easier and it is possible to enjoy London on even the tightest of budgets.
Artist Mark Wallinger has unveiled his labyrinth design for artworks to be displayed at every station on the London Underground.
The problem with HS2 for Ealing, in west London, was the line followed the route of the London Underground Central Line.
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Big Breakfast presenter Denise Van Outen has shot her first feature film role - playing a flirt on the London Underground.
Striker Danny Wright is a joiner, centre back Matt Langston is a postman and left-back Gareth Gwillim works on the London Underground.
The London Underground plays classical music in some stations to create a more crime-free environment, says a spokeswoman for transport for London.
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Reports of overcrowding on the London Underground were precious few and big crowds arrived and departed from Olympic Park with little drama.
The London Underground will soon be deploying a version of this system.
The British Transport Police, which patrols trains and the London Underground says a substantial portion of the pickpocketing is done by these organized groups.
It would be as disastrous for the London Underground to separate management between infrastructure and operations as it has been on the heavy-rail network.
He also attempted to take a grand piano on the London Underground, and persuaded a crowd of tourists that Nelson's Column needed holding up.
The first clues came from the wreckage of the London Underground.
He said his design, with its use of curves and new angles, might be too radical a change for those responsible for the London Underground Map.
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Traditional Gypsies, such as those who can be found begging with child on hip in the London Underground, are mostly from Romania, the descendants of freed slaves.
But Mr Johnson is promising new trains and reduced delays on the London Underground, new jobs, new homes, money for small businesses and the planting of 20, 000 trees.
But Lord Tunnicliffe said that the London Underground deal, which established Metronet to maintain the bulk of the tube network, was based on "a very unsatisfactory business structure".
There are two different designs of the London Underground coins.
It's the London Underground - the world's first underground railway.
And I've looked very carefully over the last few weeks at where we are with the London Underground and I'm very clear that we need to rule out privatisation of the London Underground.
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