Works have included masonry, restoration works and collections maintenance
More than three-quarters-of-a-million pounds has been spent on maintenance works at Castle Rushen over the last 15 years.
Manx National Heritage confirmed since 2010 it's received £768,000 of minor capital investment to cover stone masonry, preventative and reactive maintenance, restoration work and collections management.
No funds have been spent on improvement works at the attraction's shop despite it being relocated in 2018, as all fittings were reused from the previous space.
The figures were published by the enterprise minister in response to a Tynwald written question.
Tynwald backs chief minister's new minimum wage approach
The public deserves far better than the dysfunctional shambles it's seeing
Regular meetings needed, says hospitality industry
Manx Labour Party rebukes chief's 'shrill voices of socialism' comment
Douglas Council says new crematorium sound system 'bests interests' investment