Glyn Daniel, Magnus Magnusson and Gwyn Jones discuss the evidence for possible Viking travels to North America in the wake of the 1965 publication of the Vinland Map. Magnusson examines the Flatey Book at Denmark's Royal Library.[

• The evidence for pre-Norse settlement of Iceland by Irish monks. • Ancient Rome's best geese were reputedly sourced from northern Gaul. Daniel, aided by Olympic gold medalist Ann Packer, experiments to find the daily walking pace of geese, and shows the journey to take three months.