Dr Foyle is climbing 15 of Britain's iconic buildings in the new BBC2 series, Scaling Britain
Dr Jonathan Foyle, of Time Team fame, has been climbing the walls of Lincoln Cathedral as part of a new BBC 2 series, Scaling Britain.
Scaling Britain is about telling the story of the past 1000 years of British architecture.
The programme makers came up with the idea of climbing historic buildings as a way of offering a different view of Britain's great architecture.
Lincoln Cathedral is one of 15 buildings to feature in the new series.
Other locations include: St Paul's Cathedral in London, Durham Cathedral and the brand-new Imperial War Museum North in Manchester.
Dr Foyle told BBC Lincolnshire: "The Cathedral looks perfect from a distance, but when you get close-up it looks like a whole series of Friday afternoons in a row. You can see where a little arch has been wedged in here and there - you can almost read the minds of the people building it."
He added: "I've only had six climbing lessons and no acting lessons, so watch out for my terrified face when the programme comes out."
The programme starts on 6 September at 6.30 p.m.