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| Here we are at one of the entrances to the London Underground, an excellent rapid transit system which opened in 1863 and was the first underground railway system in the world. It is affectionately known by Londoners as "The Tube". |
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| Here we are at one of the entrances to the London Underground, an excellent rapid transit system which opened in 1863 and was the first underground railway system in the world. It is affectionately known by Londoners as "The Tube". |
