EntityQ2419871· pop 16· linked from 243 articlesBirr CastleSign in to save17th century castle with demesne and historic telescopeConnectionsLOFAREntityRepublic of IrelandCountryastronomyEntityWorld War IConceptUNESCOEntityIrishEntityWorld Heritage SiteEntitygeographic coordinate systemEntityInternational Standard Book NumberEntitytelescopeEntitycastleEntityWayback MachineEntityCharles BabbageEntityLeoEntitydigital object identifierEntityGuinness World RecordsEntityInternational Standard Serial NumberEntityUlsterEntityGothic architectureEntityMunsterEntityCategoriesBuildings and structures in Birr, County OffalyCastles in County OffalyGardens in County OffalyMuseums in County OffalyScience museums in the Republic of IrelandUse Hiberno-English from June 2023World Heritage Tentative List