Series · 2021 · Documentary
Railway historian Tim Dunn and Siddy Holloway from the London Transport Museum explore hidden areas of the London Underground that—despite being just feet away from where millions of people regularly travel—hardly anyone knows about. The pair will explore abandoned tunnels, secret bunkers and hidden staircases that have been concealed from public view for years.
4 seasons · 36 episodes

Episode 01
Holborn
Tim Dunn and Siddy Holloway explore the abandoned branch line between Holborn and Aldwych. And at Holloway Road they find out about the Tube's only spiral escalator.

Episode 02
North End
Visit one of London Underground’s most secret places: North End under Hampstead Heath. Abandoned before completion, the station became a Cold War bunker.

Episode 03
Piccadilly Circus
Explore the disused parts of Piccadilly Circus, the grandest station on the London Underground. And they also visit the long-abandoned Highgate surface station.

Episode 04
Euston and York Road
Explore the hidden parts of Euston, including unique features not found elsewhere and the bits set for demolition for HS2. Siddy also visits York Road station.

Episode 05
St Mary's, Aldgate East and Oxford Circus
Have a night-time track walk exploring long forgotten stations on the District line in Whitechapel. And they discover how sprawling Oxford Circus was first built.

Episode 06
Clapham South and Moorgate
Explore Clapham South deep level shelter, where thousands of Londoners slept in the war. They also visit Moorgate, and the remains of a tunnelling machine there.
based on 6 votes
Railway historian Tim Dunn and Siddy Holloway from the London Transport Museum explore hidden areas of the London Underground that—despite being just feet away from where millions of people regularly travel—hardly anyone knows about. The pair will explore abandoned tunnels, secret bunkers and hidden staircases that have been concealed from public view for years.
2 principal cast
Secrets of the London Underground is available to stream on Flicksy via 6 verified sources, aggregated from publicly available embed providers. The documentary has 4 seasons and 36 total episodes, rated 7.2/10 by 6 viewers.
Secrets of the London Underground has 4 seasons with 36 episodes in total.
Secrets of the London Underground is currently in production and returning for new episodes.
Secrets of the London Underground airs on U&Yesterday.
Secrets of the London Underground first aired on July 19, 2021.
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