Secrets of the London Underground
Siddy and Tim are returning for a THIRD series to discover more hidden tunnels, secret bunkers and abandoned areas of the London Underground.
Learn the secrets of the London Underground
Join Siddy Holloway, co-developer of our Hidden London tours, and presenter Tim Dunn as they explore the network in the series Secrets of the London Underground.
Join the pair as they explore abandoned tunnels, secret bunkers and hidden staircases that have been concealed from public view for years – featuring findings from our archives, glimpses into some of our Hidden London sites, exploring the deepest point of the London Underground and even a lost station from 1906.
Watch series 1 and 2 on demand on UKTV Play! Series 3 is out now.
Keen to follow Tim and Siddy’s footsteps? Embark on one of our Hidden London tours to explore secret parts of the underground for yourself.
Sign up to our enewsletter for more fun facts, behind-the-scenes snippets and even early access to book Hidden London tour tickets.
The series
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Join the conversation using hashtag #SecretsOfTheLondonUnderground on social media
Yesterday
Hidden London
Secrets of the London Underground is inspired by our Hidden London programme, which explores ‘forgotten’ parts of the Tube network and goes behind the scenes at some of London’s busiest stations through exclusive tours.
Discover hidden secrets and stations for yourself by booking a place on a Hidden London tour, learn more at the Hidden London exhibition at our Museum, and buy merch in our shop in Covent Garden or online.
Book your tickets to a Hidden London tour
Discover Hidden London
Explore ‘forgotten’ parts of the Tube network on atmospheric tours of disused stations and tunnels, go behind the scenes at some of London’s busiest stations, and uncover some of the City's fascinating history with our expert guides.
Visitors could explore an 'abandoned' Tube station underworld and discover what secrets lurk beneath our busy streets in our 5-star Hidden London exhibition.
Explore our free Hidden London Hangouts series on YouTube and join as a member to enjoy exclusive access to our Hidden London Hangouts team.
Sign up to our Hidden London enewsletter
Shop Hidden London
Own a piece of London Transport history with our range of Hidden London inspired homeware, our Underground inspired gifts and accessories, or even a REAL piece of original railwayana!