Hollow Earth, a travel guide

10.30am Saturday 11th April 2015 – BBC Radio 4

Comedian Robin Ince takes us on a tour of a world beneath the earth's crust, exploring the history of Hollow Earth theory through literature, legend and scientific theory.

http://www.bbc.co.uk/programmes/b05q4zmk

Presenter: Robin Ince
Producer: Philippa Goodrich
A Juniper Production for BBC Radio 4