Property
Type
Access
Unitary Authority
Community
Historic County
Map link, Grid Reference and Coordinates
Ref.
Barclodiad y Gawres Barclodiad y Gawres, Interior
Burial Chamber
Free
Isle of Anglesey
Aberffraw
Anglesey
Template:Streetmap SH329707 53°12′26″N 4°30′13″W / 53.2072°N 4.5036°W / 53.2072; -4.5036 (Barclodiad y Gawres Burial Chamber )
[ 1]
Basingwerk Abbey Basingwerk Abbey
Religious
Free
Flintshire
Holywell
Flintshire
Template:Streetmap SJ196774 53°17′17″N 3°12′27″W / 53.288°N 3.2074°W / 53.288; -3.2074 (Basingwerk Abbey )
[ 2]
Beaumaris Castle Beaumaris Castle
Castle World Heritage Site .[ 3]
Pay
Isle of Anglesey
Beaumaris
Anglesey
Template:Streetmap SH607762 53°15′54″N 4°05′23″W / 53.2649°N 4.0897°W / 53.2649; -4.0897 (Beaumaris Castle ) postcode LL58 8AP
[ 4]
Blaenavon Ironworks
Industrial World Heritage Site .[ 5]
Free
Torfaen
Blaenavon
Monmouthshire
Template:Streetmap SO249092 51°46′37″N 3°05′21″W / 51.777°N 3.0892°W / 51.777; -3.0892 (Blaenavon Ironworks ) postcode NP4 9RN
[ 6]
Bodowyr
Burial Chamber
Free
Isle of Anglesey
Llanidan
Anglesey
Template:Streetmap SH462681 53°11′18″N 4°18′10″W / 53.1882°N 4.3029°W / 53.1882; -4.3029 (Bodowyr Burial Chamber )
[ 7]
Brecon Gaer
Roman Fort
Free
Powys
Yscir
Brecknockshire
Template:Streetmap SO003296 51°57′23″N 3°27′06″W / 51.9565°N 3.4517°W / 51.9565; -3.4517 (Brecon Gaer Roman Fort )
[ 8]
Bronllys Castle
Castle
Free
Powys
Bronllys
Brecknockshire
Template:Streetmap SO149347 52°00′16″N 3°14′27″W / 52.0044°N 3.2407°W / 52.0044; -3.2407 (Bronllys Castle )
[ 9]
Bryn Celli Ddu
Burial Chamber
Free
Isle of Anglesey
Llanddaniel Fab
Anglesey
Template:Streetmap SH507701 53°12′28″N 4°14′10″W / 53.2077°N 4.2361°W / 53.2077; -4.2361 (Bryn Celli Ddu Burial Chamber )
[ 10]
Bryntail
Industrial
Free
Powys
Llanidloes Without
Montgomeryshire
Template:Streetmap SN913868 52°28′08″N 3°36′03″W / 52.4688°N 3.6008°W / 52.4688; -3.6008 (Bryntail Lead Mine Buildings )
[ 11]
Caer Gybi
Roman Fort
Free
Isle of Anglesey
Holyhead
Anglesey
Template:Streetmap SH247826 53°18′42″N 4°37′55″W / 53.3116°N 4.632°W / 53.3116; -4.632 (Caer Gybi Roman Fortlet )
[ 12]
Caer Lêb
Enclosure
Free
Isle of Anglesey
Llanidan
Anglesey
Template:Streetmap SH472674 53°10′55″N 4°17′12″W / 53.1819°N 4.2866°W / 53.1819; -4.2866 (Caer Lêb )
[ 13]
Caer y Tŵr
Hill Fort
Free
Isle of Anglesey
Trearddur
Anglesey
Template:Streetmap SH219829 53°18′47″N 4°40′29″W / 53.3131°N 4.6747°W / 53.3131; -4.6747 (Caer y Tŵr )
[ 14]
Caerleon Roman Fortress
Roman Fort
Free
Newport
Caerleon
Monmouthshire
Template:Streetmap ST337906 51°36′37″N 2°57′32″W / 51.6103°N 2.9588°W / 51.6103; -2.9588 (Caerleon Roman Fortress and Baths )
[ 15]
Caernarfon Castle
Castle World Heritage Site .[ 3]
Pay
Gwynedd
Caernarfon
Caernarvonshire
Template:Streetmap SH477626 53°08′22″N 4°16′37″W / 53.1394°N 4.277°W / 53.1394; -4.277 (Caernarfon Castle ) postcode LL55 2AY
[ 16]
Caernarfon town walls
Town Walls World Heritage Site .[ 3]
Free
Gwynedd
Caernarfon
Caernarvonshire
Template:Streetmap SH479626 53°08′28″N 4°16′31″W / 53.141°N 4.2754°W / 53.141; -4.2754 (Caernarfon Town Walls )
[ 17]
Caerphilly Castle
Castle
Pay
Caerphilly
Caerphilly
Glamorganshire
Template:Streetmap ST155870 51°34′35″N 3°13′14″W / 51.5763°N 3.2206°W / 51.5763; -3.2206 (Caerphilly Castle )
[ 18]
Caerwent
Roman Town
Free
Monmouthshire
Caerwent
Monmouthshire
Template:Streetmap ST469907 51°36′45″N 2°46′06″W / 51.6126°N 2.7683°W / 51.6126; -2.7683 (Caerwent Roman Town )
[ 19]
Capel Garmon
Burial Chamber
Free
Conwy
Bro Garmon
Denbighshire
Template:Streetmap SH817543 53°04′23″N 3°45′57″W / 53.073°N 3.7658°W / 53.073; -3.7658 (Capel Garmon Burial Chamber )
[ 20]
Capel Lligwy
Religious
Free
Isle of Anglesey
Moelfre
Anglesey
Template:Streetmap SH499863 53°21′08″N 4°15′23″W / 53.3523°N 4.2564°W / 53.3523; -4.2564 (Capel Lligwy )
[ 21]
Carew Cross
Religious
Free
Pembrokeshire
Carew
Pembrokeshire
Template:Streetmap SN047037 51°41′53″N 4°49′40″W / 51.698°N 4.8278°W / 51.698; -4.8278 (Carew Cross )
[ 22]
Carreg Cennen Castle
Castle
Pay
Carmarthenshire
Dyffryn Cennen
Carmarthenshire
Template:Streetmap SN668190 51°51′16″N 3°56′07″W / 51.8545°N 3.9352°W / 51.8545; -3.9352 (Carreg Cennen Castle )
[ 23]
Carreg Coetan
Burial Chamber
Free
Pembrokeshire
Newport
Pembrokeshire
Template:Streetmap SN060394 52°01′07″N 4°49′42″W / 52.0186°N 4.8282°W / 52.0186; -4.8282 (Carreg Coetan Arthur Burial Chamber )
[ 24]
Carswell Medieval House
Domestic
Free (Ext.)
Pembrokeshire
Penally
Pembrokeshire
Template:Streetmap SN098010 51°40′34″N 4°45′08″W / 51.676°N 4.7523°W / 51.676; -4.7523 (Carswell Medieval House )
[ 25]
Castell Bryn Gwyn
Prehistoric
Free
Isle of Anglesey
Llanidan
Anglesey
Template:Streetmap SH465670 53°10′42″N 4°17′52″W / 53.1784°N 4.2979°W / 53.1784; -4.2979 (Castell Bryn Gwyn )
[ 26]
Castell Coch
Castle
Pay
Cardiff
Tongwynlais
Glamorganshire
Template:Streetmap ST130826 51°32′10″N 3°15′18″W / 51.536°N 3.2549°W / 51.536; -3.2549 (Castell Coch )
[ 27]
Castell y Bere
Castle
Free
Gwynedd
Llanfihangel-y-Pennant
Merionethshire
Template:Streetmap SH667085 52°39′30″N 3°58′16″W / 52.6583°N 3.9711°W / 52.6583; -3.9711 (Castell y Bere )
[ 28]
Chepstow, Bulwark Camp
Prehistoric enclosure
Free
Monmouthshire
Chepstow
Monmouthshire
Template:Streetmap ST538927 51°37′52″N 2°40′08″W / 51.6312°N 2.6689°W / 51.6312; -2.6689 (Chepstow Bulwarks Camp )
[ 29]
Chepstow Castle
Castle
Pay
Monmouthshire
Chepstow
Monmouthshire
Template:Streetmap ST533940 51°38′37″N 2°40′32″W / 51.6437°N 2.6755°W / 51.6437; -2.6755 (Chepstow Castle )
[ 30]
Chepstow Port Wall
Town Walls
Free
Monmouthshire
Chepstow
Monmouthshire
Template:Streetmap ST533937 51°38′25″N 2°40′34″W / 51.6404°N 2.6762°W / 51.6404; -2.6762 (Chepstow Port Wall )
[ 31]
Cilgerran Castle
Castle
Pay
Pembrokeshire
Cilgerran
Pembrokeshire
Template:Streetmap SN194431 52°03′25″N 4°38′03″W / 52.0569°N 4.6342°W / 52.0569; -4.6342 (Cilgerran Castle )
[ 32]
Coity Castle
Castle
Free
Bridgend
Coity Higher
Glamorganshire
Template:Streetmap SS923814 51°31′20″N 3°33′12″W / 51.5221°N 3.5534°W / 51.5221; -3.5534 (Coity Castle )
[ 33]
Conwy Castle
Castle World Heritage Site .[ 3]
Pay
Conwy
Conwy
Caernarvonshire
Template:Streetmap SH783774 53°16′48″N 3°49′32″W / 53.2801°N 3.8256°W / 53.2801; -3.8256 (Conwy Castle ) postcode LL32 8AY
[ 34]
Conwy town walls
Town Walls World Heritage Site .[ 3]
Free
Conwy
Conwy
Caernarvonshire
Template:Streetmap SH780776 53°16′54″N 3°49′52″W / 53.2817°N 3.8312°W / 53.2817; -3.8312 (Conwy Town Walls )
[ 35]
Criccieth Castle
Castle
Pay
Gwynedd
Criccieth
Caernarvonshire
Template:Streetmap SH499377 52°54′58″N 4°13′57″W / 52.916°N 4.2324°W / 52.916; -4.2324 (Criccieth Castle )
[ 36]
Cymer Abbey
Religious
Free
Gwynedd
Llanelltyd
Merionethshire
Template:Streetmap SH721195 52°45′29″N 3°53′46″W / 52.7581°N 3.8962°W / 52.7581; -3.8962 (Cymer Abbey )
[ 37]
Denbigh Castle
Castle
Pay
Denbighshire
Denbigh
Denbighshire
Template:Streetmap SJ051657 53°10′50″N 3°25′14″W / 53.1806°N 3.4206°W / 53.1806; -3.4206 (Denbigh Castle )
[ 38]
Denbigh Friary
Religious
Free
Denbighshire
Denbigh
Denbighshire
Template:Streetmap SJ059665 53°11′16″N 3°24′33″W / 53.1878°N 3.4091°W / 53.1878; -3.4091 (Denbigh Friary )
[ 39]
Denbigh Town Walls
Town Walls
Free
Denbighshire
Denbigh
Denbighshire
Template:Streetmap SJ052657 53°10′51″N 3°25′09″W / 53.1808°N 3.4191°W / 53.1808; -3.4191 (Denbigh Town Walls )
[ 40]
Leicester's Church
Religious
Free
Denbighshire
Denbigh
Denbighshire
Template:Streetmap SJ053659 53°10′56″N 3°25′08″W / 53.1822°N 3.419°W / 53.1822; -3.419 (Denbigh, Leicester's Church )
[ 41]
St Hilary's Chapel
Religious
Free
Denbighshire
Denbigh
Denbighshire
Template:Streetmap SJ052659 53°10′54″N 3°25′11″W / 53.1818°N 3.4198°W / 53.1818; -3.4198 (Denbigh, St Hilary's Chapel )
[ 42]
Derwen Churchyard Cross
Religious
Free
Denbighshire
Derwen
Denbighshire
Template:Streetmap SJ070507 53°02′45″N 3°23′18″W / 53.0457°N 3.3882°W / 53.0457; -3.3882 (Derwen Churchyard Cross )
[ 43]
Din Dryfol
Burial Chamber
Free
Isle of Anglesey
Aberffraw
Anglesey
Template:Streetmap SH395724 53°13′30″N 4°24′17″W / 53.225°N 4.4048°W / 53.225; -4.4048 (Din Dryfol Burial Chamber )
[ 44]
Din Lligwy
Hut Group
Free
Isle of Anglesey
Moelfre
Anglesey
Template:Streetmap SH497861 53°21′03″N 4°15′33″W / 53.3508°N 4.2592°W / 53.3508; -4.2592 (Din Lligwy Hut Group )
[ 45]
Dinefwr Castle
Castle
Free
Carmarthenshire
Llandeilo
Carmarthenshire
Template:Streetmap SN622224 51°52′36″N 4°01′07″W / 51.876776°N 4.018562°W / 51.876776; -4.018562 (Dinefwr Castle )
[ 46]
Dolbadarn Castle
Castle
Free
Gwynedd
Llanberis
Caernarvonshire
Template:Streetmap SH586598 53°07′00″N 4°06′51″W / 53.1166°N 4.1143°W / 53.1166; -4.1143 (Dolbadarn Castle )
[ 47]
Dolforwyn Castle
Castle
Free
Powys
Llandyssil
Montgomeryshire
Template:Streetmap SO151950 52°32′47″N 3°15′09″W / 52.5464°N 3.2525°W / 52.5464; -3.2525 (Dolforwyn Castle )
[ 48]
Dolwyddelan Castle
Castle
Pay
Conwy
Dolwyddelan
Caernarvonshire
Template:Streetmap SH721523 53°03′11″N 3°54′30″W / 53.0531°N 3.9084°W / 53.0531; -3.9084 (Dolwyddelan Castle )
[ 49]
Dryslwyn Castle
Castle
Free
Carmarthenshire
Llangathen
Carmarthenshire
Template:Streetmap SN554203 51°51′48″N 4°06′03″W / 51.8632°N 4.1007°W / 51.8632; -4.1007 (Dryslwyn Castle )
[ 50]
Dyffryn Ardudwy
Burial Chamber
Free
Gwynedd
Dyffryn Ardudwy
Merionethshire
Template:Streetmap SH588228 52°47′05″N 4°05′37″W / 52.7846°N 4.0937°W / 52.7846; -4.0937 (Dyffryn Ardudwy Burial Chamber )
[ 51]
Dyfi Furnace
Industrial
Free
Ceredigion
Ysgubor-y-coed
Cardiganshire
Template:Streetmap SN684950 52°32′16″N 3°56′25″W / 52.5378°N 3.9404°W / 52.5378; -3.9404 (Dyfi Furnace )
[ 52]
Eliseg's Pillar
Religious
Free
Denbighshire
Llantysilio
Denbighshire
Template:Streetmap SJ202445 52°59′32″N 3°11′21″W / 52.9921°N 3.1893°W / 52.9921; -3.1893 (Eliseg's Pillar )
[ 53]
Ewenny Priory
Religious
Free
The Vale of Glamorgan
Ewenny
Glamorganshire
Template:Streetmap SS912778 51°29′20″N 3°34′03″W / 51.4888°N 3.5676°W / 51.4888; -3.5676 (Ewenny Priory )
[ 54]
Ewloe Castle
Castle
Free
Flintshire
Hawarden
Flintshire
Template:Streetmap SJ288675 53°12′00″N 3°04′02″W / 53.2°N 3.0672°W / 53.2; -3.0672 (Ewloe Castle )
[ 55]
Flint Castle
Castle
Free
Flintshire
Flint
Flintshire
Template:Streetmap SJ246732 53°15′04″N 3°07′48″W / 53.2511°N 3.1301°W / 53.2511; -3.1301 (Flint Castle )
[ 56]
Grosmont Castle
Castle
Free
Monmouthshire
Grosmont
Monmouthshire
Template:Streetmap SO405244 51°54′55″N 2°51′57″W / 51.9154°N 2.8657°W / 51.9154; -2.8657 (Grosmont Castle )
[ 57]
Gwydir Uchaf Chapel
Religious
Free
Conwy
Trefriw
Caernarvonshire
Template:Streetmap SH794609 53°07′55″N 3°48′10″W / 53.1319°N 3.8028°W / 53.1319; -3.8028 (Gwydir Uchaf Chapel )
[ 58]
Hafoty Medieval House
Domestic
Free (Ext.)
Isle of Anglesey
Cwm Cadnant
Anglesey
Template:Streetmap SH562781 53°16′51″N 4°09′28″W / 53.2809°N 4.1579°W / 53.2809; -4.1579 (Hafoty Medieval House )
[ 59]
Harlech Castle
Castle World Heritage Site .[ 3]
Pay
Gwynedd
Harlech
Merionethshire
Template:Streetmap SH581312 52°51′37″N 4°06′33″W / 52.8602°N 4.1091°W / 52.8602; -4.1091 (Harlech Castle ) postcode LL46 2YH
[ 60]
Haverfordwest Priory
Religious
Free
Pembrokeshire
Haverfordwest
Pembrokeshire
Template:Streetmap SM956151 51°47′51″N 4°57′51″W / 51.7976°N 4.9643°W / 51.7976; -4.9643 (Haverfordwest Priory )
[ 61]
Hen Gwrt Moated Site
Domestic
Free
Monmouthshire
Llantilio Crossenny
Monmouthshire
Template:Streetmap SO395151 51°49′53″N 2°52′42″W / 51.8315°N 2.8782°W / 51.8315; -2.8782 (Hen Gwrt Moated Site )
[ 62]
Holyhead Mountain Hut Circles
Hut Group
Free
Isle of Anglesey
Trearddur
Anglesey
Template:Streetmap SH212820 53°18′19″N 4°41′02″W / 53.3054°N 4.6838°W / 53.3054; -4.6838 (Holyhead Mountain Hut Circles )
[ 63]
Kidwelly Castle
Castle
Pay
Carmarthenshire
Kidwelly
Carmarthenshire
Template:Streetmap SN409070 51°44′23″N 4°18′20″W / 51.7398°N 4.3055°W / 51.7398; -4.3055 (Kidwelly Castle )
[ 64]
Lamphey Bishop's Palace
Religious
Free
Pembrokeshire
Lamphey
Pembrokeshire
Template:Streetmap SN018009 51°40′19″N 4°52′00″W / 51.672°N 4.8668°W / 51.672; -4.8668 (Lamphey Bishop's Palace )
[ 65]
Laugharne Castle
Castle
Pay
Carmarthenshire
Laugharne Township
Carmarthenshire
Template:Streetmap SN302107 51°46′11″N 4°27′44″W / 51.7696°N 4.4621°W / 51.7696; -4.4621 (Laugharne Castle )
[ 66]
Llangar Church
Religious
Pay
Denbighshire
Cynwyd
Merionethshire
Template:Streetmap SJ063424 52°58′16″N 3°23′45″W / 52.9712°N 3.3959°W / 52.9712; -3.3959 (Llangar Old Parish Church )
[ 67]
Llanmelin Wood Hill Fort
Hill Fort
Free
Monmouthshire
Caerwent
Monmouthshire
Template:Streetmap ST461925 51°37′45″N 2°46′46″W / 51.6291°N 2.7794°W / 51.6291; -2.7794 (Llanmelin Wood Hill Fort )
[ 68]
Llansteffan Castle
Castle
Free
Carmarthenshire
Llansteffan
Carmarthenshire
Template:Streetmap SN351101 51°45′56″N 4°23′27″W / 51.7655°N 4.3908°W / 51.7655; -4.3908 (Llansteffan Castle )
[ 69]
Llanthony Priory
Religious
Free
Monmouthshire
Crucorney
Monmouthshire
Template:Streetmap SO289278 51°56′41″N 3°02′11″W / 51.9448°N 3.0364°W / 51.9448; -3.0364 (Llanthony Priory )
[ 70]
Llawhaden Castle
Castle
Free
Pembrokeshire
Llawhaden
Pembrokeshire
Template:Streetmap SN073175 51°49′20″N 4°47′51″W / 51.8223°N 4.7976°W / 51.8223; -4.7976 (Llawhaden Castle )
[ 71]
Lligwy Burial Chamber
Burial Chamber
Free
Isle of Anglesey
Moelfre
Anglesey
Template:Streetmap SH501860 53°21′00″N 4°15′10″W / 53.3499°N 4.2529°W / 53.3499; -4.2529 (Lligwy Burial Chamber )
[ 72]
Loughor Castle
Castle
Free
Swansea
Llwchwr
Glamorganshire
Template:Streetmap SS564979 51°39′44″N 4°04′38″W / 51.6622°N 4.0771°W / 51.6622; -4.0771 (Loughor Castle )
[ 73]
Maen Achwyfan Cross
Religious
Free
Flintshire
Whitford
Flintshire
Template:Streetmap SJ128787 53°17′55″N 3°18′31″W / 53.2987°N 3.3085°W / 53.2987; -3.3085 (Maen Achwyfan Cross )
[ 74]
Margam Stones Museum
Religious
Pay
Neath Port Talbot
Margam
Glamorganshire
Template:Streetmap SS801864 51°33′49″N 3°43′52″W / 51.5637°N 3.7312°W / 51.5637; -3.7312 (Margam Stones Museum )
[ 75]
Monmouth Castle
Castle
Free
Monmouthshire
Monmouth
Monmouthshire
Template:Streetmap SO506128 51°48′45″N 2°43′00″W / 51.8125°N 2.7167°W / 51.8125; -2.7167 (Monmouth Castle )
[ 76]
Montgomery Castle
Castle
Free
Powys
Montgomery
Montgomeryshire
Template:Streetmap SO221967 52°33′48″N 3°09′00″W / 52.5632°N 3.1501°W / 52.5632; -3.1501 (Montgomery Castle )
[ 77]
Neath Abbey
Religious
Free
Neath Port Talbot
Dyffryn Clydach
Glamorganshire
Template:Streetmap SS738974 51°39′40″N 3°49′34″W / 51.6612°N 3.826°W / 51.6612; -3.826 (Neath Abbey and Gatehouse )
[ 78]
Newcastle Castle
Castle
Free
Bridgend
Bridgend
Glamorganshire
Template:Streetmap SS902800 51°30′32″N 3°34′59″W / 51.5089°N 3.583°W / 51.5089; -3.583 (Newcastle, Bridgend )
[ 79]
Newport Castle
Castle
Free
Newport
Stow Hill
Monmouthshire
Template:Streetmap ST311884 51°35′27″N 2°59′42″W / 51.5908°N 2.9951°W / 51.5908; -2.9951 (Newport Castle )
[ 80]
Ogmore Castle
Castle
Free
The Vale of Glamorgan
St Bride's Major
Glamorganshire
Template:Streetmap SS881769 51°28′50″N 3°36′41″W / 51.4805°N 3.6115°W / 51.4805; -3.6115 (Ogmore Castle )
[ 81]
Old Beaupre Castle
Castle
Free
The Vale of Glamorgan
Llanfair
Glamorganshire
Template:Streetmap ST008720 51°26′19″N 3°25′39″W / 51.4385°N 3.4274°W / 51.4385; -3.4274 (Old Beaupre Castle )
[ 82]
Oxwich Castle
Castle
Pay
Swansea
Penrice
Glamorganshire
Template:Streetmap SS497862 51°33′20″N 4°10′06″W / 51.5555°N 4.1683°W / 51.5555; -4.1683 (Oxwich Castle )
[ 83]
Parc le Breos
Burial Chamber}
Free
Swansea
Ilston
Glamorganshire
Template:Streetmap SS537898 51°35′18″N 4°06′46″W / 51.5883°N 4.1128°W / 51.5883; -4.1128 (Parc le Breos Burial Chamber )
[ 84]
Penarth-fawr
Medieval House
?
Gwynedd
Llanystumdwy
Caernarvonshire
Template:Streetmap SH419376 52°54′48″N 4°21′09″W / 52.9132°N 4.3524°W / 52.9132; -4.3524 (Penarth Fawr Medieval House )
[ 85]
Penmon Cross
Religious
Free
Isle of Anglesey
Llangoed
Anglesey
Template:Streetmap SH630807 53°18′21″N 4°03′24″W / 53.3058°N 4.0568°W / 53.3058; -4.0568 (Penmon Cross )
[ 86]
Penmon Dovecote
Domestic
Free
Isle of Anglesey
Llangoed
Anglesey
Template:Streetmap SH631807 53°18′20″N 4°03′21″W / 53.3056°N 4.0557°W / 53.3056; -4.0557 (Penmon Dovecote )
[ 87]
Penmon Priory
Religious
Free
Isle of Anglesey
Llangoed
Anglesey
Template:Streetmap SH630807 53°18′20″N 4°03′24″W / 53.3055°N 4.0568°W / 53.3055; -4.0568 (Penmon Priory )
[ 88]
St Seiriol's Well
Religious
Free
Isle of Anglesey
Llangoed
Anglesey
Template:Streetmap SH630808 53°18′23″N 4°03′24″W / 53.3064°N 4.0566°W / 53.3064; -4.0566 (Penmon, St Seiriol's Well )
[ 89]
Penrhos Feilw Standing Stones
Prehistoric
Free
Isle of Anglesey
Trearddur
Anglesey
Template:Streetmap SH227809 53°17′45″N 4°39′42″W / 53.2957°N 4.6618°W / 53.2957; -4.6618 (Penrhos Feliw Standing Stones )
[ 90]
Pentre Ifan
Burial Chamber
Free
Pembrokeshire
Nevern
Pembrokeshire
Template:Streetmap SN099370 51°59′57″N 4°46′12″W / 51.9991°N 4.7701°W / 51.9991; -4.7701 (Pentre Ifan Burial Chamber )
[ 91]
Plas Mawr , Conwy
Domestic
Pay
Conwy
Conwy
Caernarvonshire
Template:Streetmap SH780775 53°16′52″N 3°49′48″W / 53.2812°N 3.83°W / 53.2812; -3.83 (Plas Mawr )
[ 92]
Pont Minllyn
Bridge
Free
Gwynedd
Mawddwy
Merionethshire
Template:Streetmap SH859138 52°42′38″N 3°41′21″W / 52.7106°N 3.6891°W / 52.7106; -3.6891 (Pont Minllyn )
[ 93]
Presaddfed
Burial Chamber
Free
Isle of Anglesey
Bodedern
Anglesey
Template:Streetmap SH347808 53°17′57″N 4°28′51″W / 53.2992°N 4.4809°W / 53.2992; -4.4809 (Presaddfed Burial Chamber )
[ 94]
Raglan Castle
Castle
Pay
Monmouthshire
Raglan
Monmouthshire
Template:Streetmap SO417085 51°46′13″N 2°50′59″W / 51.7702°N 2.8498°W / 51.7702; -2.8498 (Raglan Castle )
[ 95]
Rhuddlan Castle
Castle
Pay
Denbighshire
Rhuddlan
Flintshire
Template:Streetmap SJ024779 53°17′21″N 3°27′54″W / 53.2891°N 3.465°W / 53.2891; -3.465 (Rhuddlan Castle )
[ 96]
Rug Chapel
Religious
Pay
Denbighshire
Corwen
Merionethshire
Template:Streetmap SJ064438 52°59′03″N 3°23′39″W / 52.9842°N 3.3942°W / 52.9842; -3.3942 (Rug Chapel / Llangar Old Parish Church )
[ 97]
Runston Chapel
Religious
Monmouthshire
Mathern
Monmouthshire
Template:Streetmap ST496915 51°37′13″N 2°43′45″W / 51.6204°N 2.7293°W / 51.6204; -2.7293 (Runston Chapel )
[ 98]
Segontium Roman Fort
Roman Fort
Free
Gwynedd
Caernarfon
Caernarvonshire
Template:Streetmap SH485624 53°08′14″N 4°15′58″W / 53.1372°N 4.2662°W / 53.1372; -4.2662 (Segontium Roman Fort )
[ 99]
Skenfrith Castle
Castle
Free
Monmouthshire
Llangattock-Vibon-Avel
Monmouthshire
Template:Streetmap SO456203 51°52′43″N 2°47′25″W / 51.8786°N 2.7904°W / 51.8786; -2.7904 (Skenfrith Castle )
[ 100]
St Cybi's Well
Religious
Free
Gwynedd
Llangybi
Gwynedd
Template:Streetmap SH427413 52°56′45″N 4°20′32″W / 52.945735°N 4.342090°W / 52.945735; -4.342090 (St Cybi's Well )
[ 101]
St Davids Bishop's Palace
Religious
Pay
Pembrokeshire
St Davids
Pembrokeshire
Template:Streetmap SM750254 51°52′56″N 5°16′15″W / 51.8821°N 5.2708°W / 51.8821; -5.2708 (St Davids Bishop's Palace )
[ 102]
St Dogmaels Abbey
Religious
Free
Pembrokeshire
St Dogmaels
Pembrokeshire
Template:Streetmap SN164458 52°04′50″N 4°40′50″W / 52.0806°N 4.6806°W / 52.0806; -4.6806 (St Dogmaels Abbey and Coach House )
[ 103]
St Lythans burial chamber
Burial Chamber
Free
The Vale of Glamorgan
Wenvoe
Glamorganshire
Template:Streetmap ST100723 51°26′33″N 3°17′42″W / 51.4426°N 3.2951°W / 51.4426; -3.2951 (St Lythans Burial Chamber )
[ 104]
St Non's Chapel
Religious
Free
Pembrokeshire
St Davids
Pembrokeshire
Template:Streetmap SM750243 51°52′20″N 5°16′08″W / 51.8722°N 5.2689°W / 51.8722; -5.2689 (St Non's Chapel )
[ 105]
St Quentin's Castle , Llanblethian
Castle
Free
The Vale of Glamorgan
Cowbridge with Llanblethian
Glamorganshire
Template:Streetmap SS989741 51°27′27″N 3°27′23″W / 51.4576°N 3.4564°W / 51.4576; -3.4564 (St Quentin's Castle, Llanblethian )
[ 106]
St Winefride's Chapel and Holywell
Religious
Free
Flintshire
Holywell
Flintshire
Template:Streetmap SJ185762 53°16′38″N 3°13′25″W / 53.2771°N 3.2236°W / 53.2771; -3.2236 (St Winifred's Chapel and Holy Well )
[ 107]
Strata Florida Abbey
Religious
Pay
Ceredigion
Ystrad Fflur
Cardiganshire
Template:Streetmap SN746657 52°16′31″N 3°50′18″W / 52.2752°N 3.8383°W / 52.2752; -3.8383 (Strata Florida Abbey )
[ 108]
Swansea Castle
Castle
Free (External only)
Swansea
Swansea
Glamorganshire
Template:Streetmap SS657930 51°37′14″N 3°56′28″W / 51.6205°N 3.9411°W / 51.6205; -3.9411 (Swansea Castle )
[ 109]
Talley Abbey
Religious
Free
Carmarthenshire
Talley
Carmarthenshire
Template:Streetmap SN632327 51°58′35″N 3°59′32″W / 51.9765°N 3.9922°W / 51.9765; -3.9922 (Talley Abbey )
[ 110]
Tinkinswood
Burial Chamber
Free
The Vale of Glamorgan
St Nicholas and Bonvilston
Glamorganshire
Template:Streetmap ST092732 51°27′05″N 3°18′26″W / 51.4513°N 3.3072°W / 51.4513; -3.3072 (Tinkinswood Burial Chamber )
[ 111]
Tintern Abbey
Religious
Pay
Monmouthshire
Tintern
Monmouthshire
Template:Streetmap SO533000 51°41′49″N 2°40′36″W / 51.6969°N 2.6768°W / 51.6969; -2.6768 (Tintern Abbey )
[ 112]
Trefignath
Burial Chamber
Free
Isle of Anglesey
Trearddur
Anglesey
Template:Streetmap SH258805 53°17′36″N 4°36′51″W / 53.2932°N 4.6142°W / 53.2932; -4.6142 (Trefignath Burial Chamber )
[ 113]
Tregwehelydd Standing Stone
Prehistoric
Free
Isle of Anglesey
Tref Alaw
Anglesey
Template:Streetmap SH340831 53°19′10″N 4°29′33″W / 53.3195°N 4.4926°W / 53.3195; -4.4926 (Tregwehelydd Standing Stone )
[ 114]
Tretower Castle
Castle
Pay
Powys
Llanfihangel Cwmdu
Brecknockshire
Template:Streetmap SO184212 51°53′02″N 3°11′10″W / 51.8839°N 3.1862°W / 51.8839; -3.1862 (Tretower Castle )
[ 115]
Tretower Court
Castle
Pay
Powys
Llanfihangel Cwmdu
Brecknockshire
Template:Streetmap SO185211 51°53′00″N 3°11′05″W / 51.8832°N 3.1846°W / 51.8832; -3.1846 (Tretower Court )
[ 116]
Twthill
Castle Mound
Free
Denbighshire
Rhuddlan
Flintshire
Template:Streetmap SJ026776 53°17′14″N 3°27′43″W / 53.2871°N 3.4619°W / 53.2871; -3.4619 (Twthill, Rhuddlan )
[ 117]
Tŷ Mawr Standing Stone
Prehistoric
Free
Isle of Anglesey
Holyhead
Anglesey
Template:Streetmap SH253809 53°17′48″N 4°37′17″W / 53.2967°N 4.6214°W / 53.2967; -4.6214 (Ty Mawr Standing Stone )
[ 118]
Tŷ Newydd Burial Chamber
Burial Chamber
Free
Isle of Anglesey
Llanfaelog
Anglesey
Template:Streetmap SH344738 53°14′09″N 4°28′57″W / 53.2359°N 4.4824°W / 53.2359; -4.4824 (Tŷ Newydd Burial Chamber )
[ 119]
Valle Crucis Abbey
Religious
Pay
Denbighshire
Llantysilio
Denbighshire
Template:Streetmap SJ204441 52°59′20″N 3°11′12″W / 52.9888°N 3.1867°W / 52.9888; -3.1867 (Valle Crucis Abbey )
[ 120]
Weobley Castle
Castle
Pay
Swansea
Llanrhidian Lower
Glamorganshire
Template:Streetmap SS478927 51°36′46″N 4°11′57″W / 51.6128°N 4.1993°W / 51.6128; -4.1993 (Weobley Castle )
[ 121]
White Castle
Castle
Free
Monmouthshire
Llantilio Crossenny
Monmouthshire
Template:Streetmap SO379167 51°50′46″N 2°54′08″W / 51.8461°N 2.9022°W / 51.8461; -2.9022 (White Castle )
[ 122]
Wiston Castle
Castle
Free
Pembrokeshire
Wiston
Pembrokeshire
Template:Streetmap SN022181 51°49′36″N 4°52′16″W / 51.8268°N 4.8711°W / 51.8268; -4.8711 (Wiston Castle )
[ 123]