The Historic Astronomical Observatories of Ireland have been added to the #WorldHeritage Tentative List for Ireland: https://www.gov.ie/en/department-of-housing-local-government-and-heritage/press-releases/ministers-announce-new-addition-to-irelands-unesco-world-heritage-tentative-list-historic-astronomical-observatories-of-ireland/ and https://www.dias.ie/2025/04/18/aoi_world_heritage_update/ - this is proposed as a cross-border partnership comprising Armagh Planetarium and Observatory, Armagh; Birr Castle and Demesne, Offaly; and Dunsink Observatory House, Dublin.