S2 E5 ∙ London Bridge ∙

Tim Dunn and Siddy Holloway explore the disused parts of London Bridge. Siddy visits Ongar in Essex and nearby Blake Hall.

Series Selector for Secrets of the London Underground

All episodes for series 2 of Secrets of the London Underground

S2 E10 · Baker Street

Tim Dunn and Siddy Holloway explore the tube station with the most platforms, Baker Street.