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.
Six weekend ferry crossings could face disruption
President of Tynwald announces retirement
Police close Mountain road
Fuel firm says "fingers crossed" for calmer energy costs
Ring doorbells will need data protection registration - but shouldn't cost you money
Hospice UK head calls Island cuts "cack-handed" ministerial muddle
Bus drivers voting on "final offer" from government
Vampire show featuring Manx ferry cancelled