Secrets of the London Underground
Series Overview
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.
Broadcast Schedule & Network Information
Airing status, episode counts, upcoming schedule, and network syndication.
4 Seasons • 36 Episodes
44 min per episode
2021 – Present
Premiered: Mon, Jul 19, 2021
Creative Production Team
Latest Aired Episode
Season 4, Episode 10: “Old Street”
Explores the unusual station at Old Street. It serves both the Northern line and mainline trains, and they discover how the platforms and tunnels differ across the two different services. The station has undergone massive changes since it first opened in 1901, and there’s still plenty of evidence of its early years, if you know where to look. Tim goes through a tiny doorway to discover a hidden passage with an original fully-tiled vaulted ceiling. Siddy discovers a staircase last used in the 1920s, which still has the original sign showing the Northern Line tube stops. Siddy visits Hampstead, the deepest station below ground on the entire Underground network. Unsurprisingly, it also has the deepest lift shaft, and she gets to ride on top of the lift to see the record-breaking 55-metre shaft up close. At our Museum depot, Tim meets the first ever female driver on the Victoria line. She talks about working on the tube in the 1970s.
Seasons & Episodes Breakdown
Cast & Creators
Explore Star Directory →
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
PG: Parental Guidance Suggested.
International Certification Matrix
Parental Guidance Suggested.
Production Stills & Gallery
Official cinematic photography and background stills for Secrets of the London Underground.
Shows Similar to Secrets of the London Underground
Series sharing comparable tone, character dynamics, and narrative themes
8.0
8.3
7.7
7.4
8.0
7.2
8.7
10.0
10.0
5.5
8.2
10.0
More Series Like Secrets of the London Underground
Shows sharing similar genres, audiences, and storylines.
Frequently Asked Questions About Secrets of the London Underground
Key facts, seasons breakdown, and credits for search engines and AI assistants.
What is Secrets of the London Underground about?
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.
How many seasons does Secrets of the London Underground have?
Secrets of the London Underground comprises 4 seasons available to explore.
Who stars in Secrets of the London Underground?
Key cast members in Secrets of the London Underground include Tim Dunn, Sigurbjörg Alma Ingólfsdóttir.
Who created or directed Secrets of the London Underground?
Secrets of the London Underground was developed and directed by Not specified.