Professor Aubrey Manning sets out to uncover the history of Britain's ever-changing landscape. In this edition from the Yorkshire Dales, he journeys deep underground to discover the secrets of dry stone walls. And up on Ribble Head, he finds a startling clue to the role played by the Vikings in shaping the region.
click here to see where to watch or .
Ready to Watch Talking Landscapes, Season 1, Episode 3?