Original title
Secrets of the London Underground
Released
7/19/2021
Origin country
GB
Genre
Documentary
Production companies
Brown Bob Productions
Status
Returning series
Number of seasons
4
Number of episodes
36
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.
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