Subject
- Ponte Vecchio (Florence)2
- Porticoes2
- Powerscourt (Wicklow)2
- Rail Transport2
- Railway Buildings and Structures2
- Railways2
- Reproductive Media2
- Rock Formations2
- Roofs2
- Rotunda Hospital (Dublin)2
- Saint John's College (Oxford)2
- Saint Martin's Church (Canterbury)2
- Saint Mary the Virgin, University Church of (Oxford)2
- Saint Patrick's Cathedral (Dublin)2
- Saint Peter's Church (Brighton)2
- Scientific Equipment2
- Textiles2
- Tools2
- Trinity College (Dublin)2
- Urns2