Secrets of the London Underground

Season 1 Episode 1: 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.

Genre:

Documentary

Seasons:

4

Episodes:

36

Actor:

Tim Dunn, Sigurbjörg Alma Ingólfsdóttir

Quality:

HD

Status:

Returning Series

First Air:

2021

IMDb:

7.4