Newark and Sherwood District Council will begin work today on the UK's first National Civil War Centre.
The £5.4 million project includes a £3.5 million grant from the Heritage Lottery Fund.
Items to go on display include an Iron Age Newark Torc or necklace, an exquisite Anglo-Saxon gold cross, paintings from Newark-born artist Sir William Nicholson and the Byron Press, used to print a number of the early works of the Victorian poet Lord Byron.
More top news
WARNING GRAPHIC IMAGES: Lionel the cat is recovering after a crossbow nearly half a metre long was removed from his skull.
West Midlands weather: Dull and mild with rain arriving later
East Midlands weather: Generally cloudy, mainly dry