The Museum of Lancashire at Preston's Quarter Sessions House has reopened following a £1.7m refurbishment and will be offering free admission for the next 12 months.
A number of new interactive galleries have been added to the attraction, including Lancashire Goes to War and Lancashire at Play. Disabled access was also improved.
More than £900,000 of support was provided by the Heritage Lottery Fund, while £800,000 was invested by Lancashire County Council. Conlon Construction was the main contractor.
Other firms involved included Paragon, which built a World War One trench at the museum; Pete Marquis Contractors on the demolition/strip-out; and Taylor Decorating.
A spokesperson said: "The all-new Museum of Lancashire gives visitors a taste of all things Lancashire, told through the objects and stories of real Lancashire people."
