Bovington's Tank Museum in Dorset has been handed a windfall two point five million pounds.
The money from the Heritage Lottery Fund will go towards a new tank restoration centre, two new exhibitions and more support for volunteers.
Tank Museum Director Richard Smith said; "This is a pivotal moment in the history of The Tank Museum.
The support of the Heritage Lottery Fund will ensure that we can continue to thrive, so we are naturally delighted and extremely grateful."
More top news
Rain becoming more persistent overnight. Rain and cloud slow to clear tomorrow but becoming dry by the afternoon. Some brightness later
Rain becoming more persistent overnight. The rain gradually clearing tomorrow morning then sunny spells for the afternoon, feeling cooler
Becoming brighter with warm sunny spells developing this afternoon but also the risk of heavy showers