A team have been climbing almost 300 feet up the side of Lincoln Cathedral every day to inspect the ancient brickwork for signs of damage. But they've also had some company....
Matt Price reports.
Today is the third day of a three-day celebration in Lincoln Cathedral, where the city's engineering history is on show to the public.
The event is being organised by members of the Lincoln Engineering Breakfast Group with support from a number of organisations including the University of Lincoln, Lincoln College, Cathedral and the City of Lincoln Council.
The exhibitions are giving people the chance to learn many interesting facts about engineering in Lincoln.