Secrets of the London Underground (2021)

S3E2 South Kensington and Marylebone

Tim Dunn and Siddy Holloway venture into the abandoned sections of South Kensington station, where nature has taken over the platforms, and remnants of wartime history linger. Meanwhile, Siddy travels to Marylebone to uncover the original elements of the platforms and the concealed tube infrastructure tucked away within the hotel's walls.