Secrets of the Underground is one of Londonist's most-watched series, racking up millions of views.
In it, Geoff Marshall, former Guinness World Record holder for visiting all stations on the Underground in one day, explores the city's iconic transport network uncovers trivia you can impress your friends with.
If you've never seen the series, enjoy this classic about the District line. In which ticket hall can you find a swastika? Which station changes name from one platform to the next? Where does the Underground go over the Overground?
- Secrets of the Bakerloo Line
- Secrets of the Central Line
- Secrets of the Hammersmith and City Line
- Secrets of the Jubilee Line
- Secrets of the Northern Line
- Secrets of the Piccadilly Line
- Secrets of the Victoria Line
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