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11 Episodes 2013 - 2014
Episode 1
4 mins
Geoff Marshall travels the length of London's Victoria Line, picking out some of the more unusual features in the stations.
Episode 2
5 mins
This time, Geoff Marshall takes us on a tour of the Northern Line, looking for unusual features including unfinished platforms, secret escalators, fibbing signs and even a plastic owl.
Episode 3
5 mins
It's Part 3 of 'Secrets of the Underground' and this time Geoff Marshall is starting at Upminster and travelling from east to west on the District Line, and along the way will point out all the things you've most likely missed on your travels.
Episode 4
5 mins
Geoff Marshall reveals dozens of features and facts about London's Central Line that you probably didn't know. We start in Epping and head east to west across London.
Episode 5
5 mins
Geoff Marshall follows the brown line, as he continues his exploration of the London Underground network. But why's he starting in Stanmore? And which is his least favorite station?
Episode 6
5 mins
Geoff Marshall travels the length of the Jubilee Line to discover some of its more unusual features. He finds a secret governmental tube entrance, the network's most pointless waiting room, and an elephant.
Episode 7
5 mins
Geoff Marshall travel's London's H&C tube line, looking for the unusual and little-known features. If you like this video, check out Londonist's YouTube channel for the secrets of other tube lines.
Episode 8
6 mins
Which station has a cache of hidden gnomes? Where could you find an abandoned spiral escalator? And which station has its own unique font? Geoff Marshall goes in search of the secrets of the Piccadilly Line.
Episode 9
5 mins
Geoff Marshall tours London's yellow line looking for odd bits of trivia...and himself.
Episode 10
5 mins
Geoff Marshall follows in the footsteps of John Betjeman into Metroland, following London's Metropolitan Line.
Episode 11
4 mins
Geoff Marshall ponders the mysteries of London's shortest tube line, and reveals how he's been a little bit naughty, all through this series.