They decided to tie the knot in the middle of a gunpowder store at Gosport's Explosion! museum.
Family and friends from as far afield as Scotland attended the bash to see the couple wed.
Grace, 27, of Windsor Road, Cosham, commented: "We weren't to keen on a traditional wedding and wanted something different.
"When we saw this place we really were captured by the atmosphere and the setting and the staff have been brilliant."
It was the first wedding to be hosted at the Priddy's Hard museum after it was awarded a marriage licence just weeks ago.
A spokesman for the museum said: "It was a fantastic event that went really well.
"We hope to have many more like it."
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