Secrets of the London Underground

S3 E1 ∙ Camden ∙

Tim Dunn and Siddy Holloway head to London's iconic Camden Town station - a labyrinthine junction on the Northern Line.

Series Selector for Secrets of the London Underground

All episodes for series 3 of Secrets of the London Underground

S3 E1 · Camden

Tim Dunn and Siddy Holloway head to London's iconic Camden Town station.

S3 E3 · Green Park

Tim Dunn and Siddy Holloway are heading to Dover Street, now known as Green Park.

S3 E7 · Heathrow

Tim Dunn and Siddy Holloway head to the sprawling Heathrow Airport underground stations.

S3 E9 · Acton Works

Tim Dunn and Siddy Holloway snoop around TFL's massive maintenance facility - Acton Works.