Castles
Mottes & Earthworks
Fortified Manors & Towers
Narberth
Neath
New
New Buckenham
Newark
Newcastle Emlyn
Newcastle on Tyne
Newport (Dyfed)
Newport (Gwent)
Norham
Norwich
Nottingham
Nunney
Nefyn
Nether Stowey
New Radnor
Newcastle under Lyme
Newnham-on-Severn
Nevern
Newton Tump
Newington Bagpath
Norton Motte
Naworth
Nether Levens
Nether Hall
Nether Hall (Essex)
Netley Abbey
Newbiggin Hall
Newton Arlosh
Norris
North Elmham
Oakham
Odiham
Ogmore
Okehampton
Old Bolingbroke
Old Buckenham
Orford
Oxford
Oystermouth
Odell
Old Castleton
Old Hall Camp
Old Sarum
Old Wardn
Olivers Battery
Ongar
Orcop
Oswestry
Oversley
Ogle
Old Beaupre
Old Wardour
Ormside Hall
Oxburgh Hall
Oxwich
Peel (IOM)
Pembridge
Pembroke
Penard
Pendennis
Pendragon
Penmark
Penrice
Penrith
Pevensey Castle (Anderida Fort)
Peveril
Pickering
Picton
Piel
Plymouth
Pontefract
Portchester Castle (Portus Adurni)
Portland
Portsmouth Round Tower
Powis
Prudhoe
Painscastle
Parc Y Castell
Penarth
Pengersick
Penmaen
Penhallam
Penlle'r Castell
Pennington
Penstowe
Penwortham
Penyard
Penrhos
Piercebridge (Morbium) Fort
Pilsbury
Pinxton
Pipe Aston Tump
Pirton
Plas Baglan
Pleshey
Plumpton (Voreda) Fort
Plympton
Podington Motte
Pont Hendre
Powerstock
Prestatyn
Presteigne
Pulford
Pulborough
Paignton Bishop's Palace
Paull Tower
Peckforton
Pencoed
Penhow
Penshurst Place
Ponteland Tower
Powderham
Preston Patrick Hall
Preston Tower
Prior Castells Tower
Quatford
Raglan
Reculver (Regulbium) Fort
Restormel
Rhuddlan
Richborough (Rutupiae) Fort
Richmond
Rochester Castle
Rockingham
Rufus
Ruthin
Ratley
Ravenglass (Glannaventa) Fort
Rayleigh
Reigate
Renhold Ring
Rhayader
Rhyd-yr-onen Moat
Richard's Castle
Risinghoe Castle
Rochford
Rowlstone
Ruardean
Rushbury
Ruyton-XI-Towns
Raby
Ravensworth (Yorks)
Ravensworth (Durham)
Ripley
Roch
Rochford Tower
Rose
Rye