The Museum of Lincolnshire Life will be celebrating the history of Lincoln this month by transforming the courtyard into a 1940s village fair.
The museum will decorate its historic court with bunting, traditional games, sweet treats and a fortune-teller.
Theresa Workman, collections access officer, said: “The fete promises to be a great British day out and there will be plenty of fun for all the family.
“There’s the opportunity to play hook-a-duck and hoopla and visit our very own fortune-teller. Children can also create their own flag, placemat and patriotic hat.
“The old-fashioned sweet shop will be open throughout the day selling all the traditional favourites, including Lincolnshire rock.
“We’ll also be serving that Great British favourite, the traditional cream tea.”
The event will be held on August 21 between 10am and 4pm. Entry is free, and includes access to the rest of the museum, though some activities may be charged.
If it’s wet, the event will still take place indoors.