Seasons and episodes
1Season 1 Jul. 19, 2021
- There are still no episodes this season
2Season 2 May. 05, 2022
- There are still no episodes this season
3Season 3 Jul. 04, 2023
- There are still no episodes this season
4Season 4 Jul. 02, 2024
- There are still no episodes this season
Synopsis
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. 
Original title Secrets of the London Underground
TMDb Rating 7.4 5 votes
First air date Jul. 19, 2021
Last air date Sep. 03, 2024
Seasons 4
Episodes 36
Average Duration 44 minutes
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