A £2.7m project telling the story of King’s Lynn is due to open its doors for the first time next week.
Historic objects including King John’s cup will be on display after a major project to create the attraction.
The exhibition starts in the newly-revealed undercroft of the 15th century Trinity Guildhall and the exhibits demonstrate how Lynn’s history still shapes the life of the town.
It has been funded by a £1,850,600 grant from the Heritage Lottery Fund, £800,000 from West Norfolk Council and investments from other funders.
Visitors will be able to tour the Treasury, a dark and dramatic space to display historic artefacts.
The 14th century King John Cup, decorated in gilt and enamel, is a rare example of a medieval cup.
It will be accompanied by the King John sword and silver maces and regalia still used by the council.
Interactive exhibits in the restored gaol cells explore the lives and deaths of the town’s most notorious citizens.
The borough archives will be housed within the new attraction.
West Norfolk has one of the finest archives in the country with documents dating to the 13th century, including King John’s Royal Charter of 1204.
Other documents tell the story of the town through the registers of freemen, accounts, minutes and court records.
A new environmentally-controlled storage area has been created along with a study area.
Visitors can use the resource room and the Norfolk Records Office, in collaboration with the borough council, will staff the archive which includes thousands of digital images from key documents.
A mobile phone app will be launched in the summer and it will provide an accompanying guide to the stories.
A new extension has been added with a lift and some stairs has been added to the back of the Old Gaol House so visitors can see the 15th century Stone Hall, Georgian Assembly Room and Card Room which will be open on Tuesdays and Saturdays.
Stories of Lynn will be open seven days a week from 10am to 4.30pm and tickets will be £5 for adults and £3 for children and concessions. It will open to the public on March 25.