More than £12 million has been awarded to Lincoln Cathedral by the Heritage Lottery Fund for redevelopment and restoration works.
It is the only cathedral on Historic England's buildings at-risk register and has a repair bill topping £1.5 million a year.
Staff hope to double school visit numbers and widen the range of visitors to the cathedral.
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.