Searching for Secrets

Smithsonian Channel

Tuesday 13 December 2022  21:00 - 22:00 (60 mins)
London. Five experts set out to explore how a Victorian gas lamp would help solve London's sewage problem, the surprising history of Marble Arch, and how the black cab got its unusual shape.

Searching for Secrets (Smithsonian Channel) Tuesday 13 December 2022 21:00 - 22:00