1. Dinefwr Castle
Location: near Llandeilo, Carmarthenshire, Wales (Welsh: Llandeilo, Sir Gaerfyrddin, Cymru)
2. Kilkenny Castle (Caisleán Chill Chainnigh)
Location: Kilkenny, County Kilkenny, Ireland (Irish: Chill Chainnigh, Contae Chill Chainnaigh, Éire)
3. Edinburgh Castle
Location: Edinburgh, Lothian, Scotland (Scottish Gaelic: Dùn Èideann, Lodainn, Alba)
4. Warwick Castle
Location: Warwick, Warwickshire, England
5. Laugharne Castle (Castell Talacharn)
Location: Laugharne, Carmarthenshire, Wales (Welsh: Talacharn, Sir Gaerfyrddin, Cymru)
6. Blarney Castle (Caisleán na Blarnan)
Location: Blarney, County Cork, Ireland (Irish: An Bhlarna, Contae Chorcaí, Éire)
7. Castle Fraser
Location: near Kemnay, Aberdeenshire, Scotland (Scottish Gaelic: Ceann a’ Mhuigh, Siorrachd Obar Dheathain, Alba)
8. Bodiam Castle
Location: near Robertsbridge, East Sussex, England
9. Caldicot Castle (Castell Cil-y-coed)
Location: Caldicot, Monmouthshire, Wales (Welsh: Cil-y-coed, Sir Fynwy, Cymru)
10. Donegal Castle (Caisleán Dhún na nGall)
Location: Donegal, County Donegal, Ireland (Irish: Dún na nGall, Contae Dún na nGall, Éire)
11. Stirling Castle (Caisteal Sruighlea)
Location: Stirling, Stirling, Scotland (Scottish Gaelic: Sruighlea, Sruighlea, Alba)
12. Leeds Castle
Location: near Maidstone, Kent, England
13. Caerphilly Castle (Castell Caerffili)
Location: Caerphilly*, Caerphilly, Wales (Welsh: Caerffili, Caerffili, Cymru)
*It’s pronounced like ‘car-FILL-ee,’ not ‘carefully.’
14. Cahir Castle (Caisleán na Cathrach)
Location: Cahir, South Tipperary, Ireland (Irish: An Chathair, Tiobraid Árann Theas, Éire)
15. Urquhart Castle (Caisteal Urchadain)
Location: near Drumnadrochit, Highland, Scotland (Scottish Gaelic: Druim na Drochaid, A’ Ghàidhealtachd, Alba)
(Pssst: that’s Loch Ness in the background)!
16. Arundel Castle
Location: Arundel, West Sussex, England
17. Conwy Castle (Castell Conwy)
Location: Conwy, Conwy, Wales (Welsh: Conwy, Conwy, Cymru)
18. King John’s Castle (Caisleán Luimnigh)
Location: Limerick, County Limerick, Ireland (Irish: Luimnigh, Contae Luimnigh, Éire)
19. Glamis Castle
Location: Glamis, Angus, Scotland (Scottish Gaelic: Glamis, Aonghas, Alba)
20. Hever Castle
Location: near Edenbridge, Kent, England
21. Powis Castle (Castell Powis)
Location: near Welshpool, Powys, Wales (Welsh: Y Trallwng, Powys, Cymru)
22. Dunguaire Castle (Dún Guaire)
Location: near Kinvara, County Galway, Ireland (Irish: Cinn Mhara, Contae na Gaillimhe, Éire)
23. Inveraray Castle (Caisteal Inbhir Aora)
Location: near Inveraray, Argyll, Scotland (Scottish Gaelic: Inbhir Aora, Earra-Ghàidheal, Alba)