The Most Beautiful Medieval Castles in the United Kingdom
9 places · updated 14 October 2026
In short: By our ranking, the most beautiful medieval castles in the United Kingdom are Tower of London, Windsor Castle and Bodiam Castle. The list covers 9 medieval castles. Last updated 14 October 2026.
Britain's medieval castles begin with a conquest. After 1066 the Normans covered England with castles to hold a hostile country, first in timber and then in stone, and later kings carried the same method into Wales and the borders of Scotland. Over four centuries the castle changed from a square keep to rings of curtain walls and gatehouses and finally to the moated show-castle of a knight grown rich in war, so a single country holds the whole story of castle building.
The Tower of London grew around the White Tower, raised by William the Conqueror, and Windsor Castle, also founded by William, is the oldest and largest occupied castle in the world. Bodiam Castle in Sussex, built in the 1380s, rises straight out of a wide moat with round corner towers, the image of a medieval castle in its purest form. Caernarfon Castle, begun by Edward I in 1283, has polygonal towers and banded stonework that echo the walls of Constantinople. Edinburgh Castle crowns an extinct volcanic plug above the Scottish capital and keeps St Margaret's Chapel, the oldest building in the city. Leeds Castle in Kent spreads across islands in a lake and was a royal residence for several medieval queens and for Henry VIII.
In this list
| # | Place | Type | UNESCO |
|---|---|---|---|
| 1 | Tower of London | Castle | ✓ |
| 2 | Windsor Castle | Palace | |
| 3 | Bodiam Castle | Castle | |
| 4 | Edinburgh Castle | Castle | |
| 5 | Caernarfon Castle | Castle | ✓ |
| 6 | Leeds Castle | Castle | |
| 7 | Conwy Castle | Castle | ✓ |
| 8 | Harlech Castle | Castle | ✓ |
| 9 | Cardiff Castle | Castle |
01 Tower of London
United Kingdom · 3 km from London51.508° N 0.076° W
- UNESCO World Heritage
Matthias Bethke · CC BY-SA 4.0 The Tower of London began as a statement of conquest. William the Conqueror founded it at the end of 1066, and the pale keep that gives the whole fortress its name, the White Tower, went up from 1078 as a deliberately overbearing presence above Saxon London and the river traffic of the Thames.
Did you know? In 1252 King Haakon IV of Norway gave Henry III a polar bear, which Londoners watched fishing in the Thames on a long chain.
02 Windsor Castle
United Kingdom · 26.1 km from Reading51.484° N 0.604° W
Image by diego_torres from Pixabay Windsor Castle has been a royal residence for more than nine centuries, which makes it the longest-occupied palace in Europe and the largest castle in the world that is still lived in. Its plan is the one William the Conqueror laid down in the decade after 1066: a motte-and-bailey castle with its wards gathered around a central mound, on a ridge above the Thames.
Did you know? Edward III spent £51,000 rebuilding Windsor between 1350 and 1377, the largest sum any medieval English king spent on a single building project.
03 Bodiam Castle
United Kingdom51.002° N 0.544° E
Image by diego_torres from Pixabay Bodiam Castle is what many people picture when they think of a medieval castle: a square of sandstone walls with round towers at the corners, battlements, a twin-towered gatehouse, all reflected in a wide moat. The historian Charles Coulson called it the popular ideal of a medieval castle, and the military historian Cathcart King called it the most complete surviving example of a quadrangular castle in England.
Did you know? In the year the licence was granted, 1385, a French fleet of about 1,200 ships massed at Sluys in Flanders, spreading panic across southern England.
04 Edinburgh Castle
United Kingdom · 1.1 km from Edinburgh55.949° N 3.201° W
Image by Walkerssk from Pixabay Edinburgh Castle is less a building than a crown worn by a rock. Castle Rock is the plug of a volcano that went quiet some 350 million years ago: hard dolerite that the ice sheets could not grind away, leaving cliffs up to 80 metres high on three sides and a single gentle tail of rock running east. That tail became the Royal Mile, and the whole Old Town grew down it like a spine.
Did you know? In 1314 thirty men under Thomas Randolph scaled the north face at night, guided by a former garrison soldier who knew a way up.
05 Caernarfon Castle
United Kingdom53.139° N 4.277° W
- UNESCO World Heritage
Tilman2007 · CC BY-SA 4.0 Caernarfon Castle does not look like the other fortresses Edward I raised in Wales. Instead of round towers it has many-sided ones, and its long curtain walls are striped with bands of differently coloured stone. Historians have long debated why.
Did you know? While the foundations were dug in 1283, Edward I and Queen Eleanor stayed on site for over a month in timber-framed apartments built for them.
06 Leeds Castle
United Kingdom · 34.1 km from Southend-on-Sea51.249° N 0.630° E
Worldfootage · CC BY-SA 4.0 Leeds Castle seems to float. Its pale stone ranges stand on islands in a lake formed by the River Len, and the water reflects them almost the whole way round. The lake was probably created under Edward I, who made the castle one of his favourite homes. The castle has nothing to do with the northern city of Leeds; it takes its name from the Kentish village beside it.
Did you know? Queen Eleanor acquired the castle in 1278 by buying up its debt bond cheaply from Jewish moneylenders squeezed by her husband's heavy taxes.
07 Conwy Castle
United Kingdom53.280° N 3.826° W
- UNESCO World Heritage
Image by stevenm-s from Pixabay Few medieval fortresses still look as complete from a distance as Conwy. Eight great round towers rise from a rocky ridge above the estuary of the River Conwy in North Wales, linked by high curtain walls of dark stone, and from the castle a ring of town walls with twenty-one towers and three gateways runs right round the old town.
Did you know? Conwy Castle and its town walls were built for Edward I in about four years, between 1283 and 1287.
08 Harlech Castle
United Kingdom52.860° N 4.109° W
- UNESCO World Heritage
Image by diego_torres from Pixabay Harlech Castle sits on a crag of grey-green sandstone some sixty metres above the coastal flats of Cardigan Bay, with the mountains of Eryri behind it and the sea spread out in front.
Did you know? The castle cost about £8,190 to build, roughly a tenth of what Edward I spent on Welsh castles between 1277 and 1304.
09 Cardiff Castle
United Kingdom · 0.9 km from Cardiff51.482° N 3.181° W
User: (WT-shared) Cardiff at wts wikivoyage · Public domain Few places compress so much history into one walled enclosure in the middle of a modern city. Cardiff Castle began as a Roman fort, became a Norman stronghold and ended as one of the most extravagant Victorian fantasies in Britain, and all three layers are still visible within the same walls on the edge of the city's shopping streets.
Did you know? The castle stands on the site of a Roman fort, and parts of the 3rd-century Roman wall survive at the base of its walls.
How this list is ranked
Places are chosen for how they look, not for how famous they are: each one has its own description and a photograph credited to its author. The order is a single world ranking that weighs the beauty of the place in curated photography together with how widely it is documented — the number of language editions of its encyclopedia article and how often that article is read in a year. The list is rebuilt as places are added, so the order and the counts on this page are always current.
Questions people ask
- What are the most beautiful medieval castles in the United Kingdom?
- On our list, Tower of London ranks first, followed by Windsor Castle and Bodiam Castle.
- What is the oldest part of the Tower of London?
- The White Tower, the great stone keep begun by William the Conqueror in the 1070s, is the oldest part of the castle.
- Why did Edward I build castles in Wales?
- After his conquest of Gwynedd in 1283, Edward I built a ring of castles, including Caernarfon, Conwy, Harlech and Beaumaris, to secure English rule in north Wales. Together they are a UNESCO World Heritage Site.
- Is Windsor Castle still lived in?
- Yes. Windsor Castle has been a royal residence since the 11th century and is the oldest and largest occupied castle in the world.
- How many medieval castles are on this list in the United Kingdom?
- The list covers 9 medieval castles.