Plans for multi-million pound improvements to Lincoln Castle are going on show to the public.
People are being given a chance to find out more about plans to re-open the Victorian male prison and repairs to the castle wall.
It is hoped the £19 million pound project will be completed by 2015.
Councillor Eddy Poll, Executive Member for Cultural Services, said:
"This is an opportunity to find out about what will be happening up at the castle over the next couple of years, improvements that will make it one of the UK’s top historic attractions.
"Not only will this ensure that this local landmark is kept in good condition for future generations, it’ll also attract thousands more visitors, providing a sizeable boost for the local tourism economy.”