All the castles and fortifications that can be accessed from the maps are listed here.

Abergavenny Amberley Ashby de la Zouche
Aberystwyth Anwick Ashley
Acton Burnell Appleby Askerton
Allington Arundel Aydon

 

Baconsthorpe Berkhamsted Brean Fort
Bamburgh Berry Head Forts Brecon
Barley Pound Berry Pomeroy Bridgenorth
Barnard Berwick Brinklow
Barnstable Bewcastle Bronllys
Barnwell Bickleigh Brough
Barrack Battery Bishop's Aukland Brougham
Barrow Bishops Waltham Broughton
Barry Boarstal Tower Brown Down Battery
Basing House Bodiam Brownsea
Beaumaris Bolsover Buckden Palace
Beeston Bolton Buckenham
Belan Fort Bouldnor Battery Builth
Belsay Bowes Bull Sand Fort
Belvoir Bramber Bungay
Bembridge Fort Brampton Bryan Burgh
Berkeley Brancepeth Burgh-by-Sands
    Bywell

 

Caernarfon Castell y Bere Clun
Caerphilly Castle Acre Coalhouse Fort
Caister Castle Neroche Cockermouth
Caldicot Castle Rising Coity
Callaly Caverswall Colchester
Calshot Charles Fort Compton
Camber Chepstow Conisborough
Cambridge Chester Conwy
Canterbury Chilham Cooling
Cardiff Chillingham Corfe
Cardigan Chirk Cowdray House
Carew Christchurch Craster
Carisbrooke Cilgeran Criccieth
Carlisle Clare Crickhowell
Carmarthen Cliff End Battery Croft
Carreg Cennan Clifton Tower Crookhorn Retreat
Cartington Clitheroe Culver Battery

 

Dacre Denbigh Dover
Dalemain Dinas Bran Drysllwyn
Dalton Dolbadarn Dudley
Dartmouth Dolforwyn Dunstanborough
Deal Dolwyddelan Dunster
Deddington Donnington Durham
Deganwy    

 

Eastney Battery Egremont Ewloe
Eccleshall Ellesmere Exeter
Edlingham Etal Eynesford

 

Farleigh Hungerford Fort Cumberland Fort Rowner
Farlington Redoubt Fort Elson Fort Southwick
Farnham Fort Fareham Fort Victoria
Flint Fort Gomer Fort Wallington
Ford Fort Grange Fort Widley
Fort Albert Fort Monkton Framlingham
Fort Blockhouse Fort Nelson Freshwater Redoubt
Fort Brockhurst Fort Purbrook  

 

Gidleigh Godshill Great Salkeld
Gilkicker Golden Hill Fort Greystoke
Gilling Gosport Defenses Grosmont
Gleaston Goodrich Guildford

 

Hadleigh Hawarden Hertford
Haile Sand Fort Hay Hever
Harbottle Heddingham Hilsea Lines
Harlech Helmsley Hoghton Tower
Harwich Fort Hen Domen Holt
Hastings Hemyock Horse Sands Fort
Hatherwood Point Herstmonceaux Hurst
Haughton Hereford Hutton
Haverfordwest   Hylton

 

Ince Isel Hall  

 

Kendall Kidwelly Knaresborough
Kenfig Kirby Muxloe  
Kennilworth Kirkoswald  

 

Lancaster Leicester Loughor
Landguard Fort Lincoln Ludgershall
Langley Lindisfarne Ludlow
Lathom House Llandovery Lullingstone
Laugharne Llanstephan Lumley
Launceston Llawhaden Lumps Fort
Leeds Longthorpe Tower Lydford
Levens Hall Longtown Lympne
Lewes    

 

Manorbier Martello Towers (South) Monmouth
Marisco Maxstoke Montgomery
Markenfield Merdon Moreton
Marmion Tower Middleham Mulgrave
Martello Towers (East) Minster Lovell Muncaster