The Sir Hans Sloane Centre 23 High Street, Killyleagh.
https://sirhanssloanecentre.org/ Facebook @sirhanssloanecentre
Rooms can be hired for meetings and events. There is a pleasant patio area to sit and pass some time, a Gallery and a Visitor Area of informative displays, and a small Gift Shop.
Permanent Exhibitions are on Hans Sloane, The History of the Castle, Rowan Hamilton Family and the People of Killyleagh and Shrigley.