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Secrets of the Underground
Secrets of the Underground explores the fascinating world of the Tube in London, as Geoff takes you on a tour around things you may never have spotted before.
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Cast & Crew See All
Season 2 Episode Guide See All
Episode 1
Secrets of the DLR
5 mins
Continuing our 'Secrets' series, we've done all the tube lines now but there's still the Docklands Light Railway. So Geoff Marshall gives us a whistle-stop tour of the curiosities to be found on London's DLR
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