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
Contractors have moved in to clear more than 100 tonnes of rubbish dumped in a country lane
Wet and windy at times over the coming days.
Sunny spells developing today. Wet and stormy tomorrow.