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Secrets of the London Underground: Season 1 - 6 Episode s
1x1 - Holborn
July 19, 2021
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.
1x2 - North End
July 26, 2021
Visit one of London Underground’s most secret places: North End under Hampstead Heath. Abandoned before completion, the station became a Cold War bunker.
1x3 - Piccadilly Circus
August 2, 2021
Explore the disused parts of Piccadilly Circus, the grandest station on the London Underground. And they also visit the long-abandoned Highgate surface station.
1x4 - Euston and York Road
August 9, 2021
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.
1x5 - St Mary's, Aldgate East and Oxford Circus
August 16, 2021
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.
1x6 - Clapham South and Moorgate
August 23, 2021
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.