All Manx National Heritage sites on Island will close on Monday.
Organisers say it's as a 'mark of respect' as the funeral is held for her Majesty, Queen Elizabeth II.
In a short statement, MNH says 'it's with great sadness we learned last week of the death of her Majesty - who served through many defining moments in our Island's history'.
Planned events have been rescheduled and MNH says it will re-open again as usual the following day.
Southern charities can apply for grants from this week
New Irish Sea windfarm gets go-ahead from UK government
Will cloud clear to give Northern Lights show?
Plans to stop sewage being released into sea from toilets
Island-wide dress down day for grief charity this week
Should election candidates publish business interests?
Village's High Street now closed for works
Employment laws among those to be discussed in Keys today