Episode details
Available for over a year
From coal mines in South Africa to the proposed Alice City in Tokyo, Japan. A look at the work involved in digging and constructing tunnels.
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
From coal mines in South Africa to the proposed Alice City in Tokyo, Japan. A look at the work involved in digging and constructing tunnels.
Programme Website