Entry to some OPW sites will be free on the first wednesday of the month for 2011. Some are normally free anyway but worth checking out. The Dublin locations are listed as:
Arás an Uachtarain
Arbour Hill
The Casino, Marino
Dublin Castle, State Apartments
Farmleigh (Grounds open all year. House tours: Mar-Dec)
Garden of Remembrance
Government Buildings
Grangegorman Military Cemetery
Kilmainham Gaol
National Botanic Gardens
Pearse Museum - St Enda's Park
Phoenix Park Visitor Centre & Ashtown Castle
Rathfarnham Castle
Royal Hospital, Kilmainham
St Audoen's Church
St Mary's Abbey
St Stephen's Green
The Croppies Acre
War Memorial Gardens
Arás an Uachtarain
Arbour Hill
The Casino, Marino
Dublin Castle, State Apartments
Farmleigh (Grounds open all year. House tours: Mar-Dec)
Garden of Remembrance
Government Buildings
Grangegorman Military Cemetery
Kilmainham Gaol
National Botanic Gardens
Pearse Museum - St Enda's Park
Phoenix Park Visitor Centre & Ashtown Castle
Rathfarnham Castle
Royal Hospital, Kilmainham
St Audoen's Church
St Mary's Abbey
St Stephen's Green
The Croppies Acre
War Memorial Gardens
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