The Most Beautiful Castles in the United Kingdom
12 places · updated 14 October 2026
In short: By our ranking, the most beautiful castles in the United Kingdom are Tower of London, St Michael's Mount and Bamburgh Castle. The list covers 12 castles. Last updated 14 October 2026.
Britain's castles tell the story of conquest. The Normans arrived in 1066 and secured the country with castles; Edward I ringed north Wales with some of the most sophisticated fortresses of the Middle Ages; and centuries of conflict along the Scottish border and the coasts kept building going. Afterwards many castles became homes rather than ruins, so royal residences still in use stand alongside moated shells and island strongholds.
The Tower of London keeps William the Conqueror's White Tower at its centre and still guards the Crown Jewels. Windsor Castle, founded by William as well, is the oldest and largest occupied castle in the world. Edinburgh Castle sits on an extinct volcanic plug above the city, and Caernarfon, built for Edward I, has polygonal towers and banded masonry that recall the walls of Constantinople.
The coast and water give others their shape. St Michael's Mount in Cornwall is a tidal island reached on foot by a causeway at low tide, and Bamburgh Castle commands the Northumberland shore from a rocky outcrop above the beach. Eilean Donan stands on a small island where three sea lochs meet in the Scottish Highlands, rebuilt in the 20th century from ruins. In the south of England, Bodiam is a near-perfect 14th-century moated castle, and Leeds Castle in Kent rises from islands in a lake.
In this list
| # | Place | Type | UNESCO |
|---|---|---|---|
| 1 | Tower of London | Castle | ✓ |
| 2 | St Michael's Mount | Castle | |
| 3 | Bamburgh Castle | Castle | |
| 4 | Windsor Castle | Palace | |
| 5 | Eilean Donan Castle | Castle | |
| 6 | Bodiam Castle | Castle | |
| 7 | Edinburgh Castle | Castle | |
| 8 | Caernarfon Castle | Castle | ✓ |
| 9 | Leeds Castle | Castle | |
| 10 | Conwy Castle | Castle | ✓ |
| 11 | Harlech Castle | Castle | ✓ |
| 12 | 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 has been a royal palace, armoury, treasury, menagerie, mint, record office and prison, and it still guards the Crown Jewels. Its grim reputation owes much to Tudor propaganda and Victorian novelists: before the twentieth century only seven people were executed inside the walls, while most executions took place on Tower Hill outside. The Yeomen Warders still live and work here, a detachment of the King's Guard joins them for the nightly Ceremony of the Keys, and at least six ravens are kept on the grounds, honouring the old belief that the kingdom will fall if they leave. The fortress is cared for by the charity Historic Royal Palaces and is a World Heritage Site.
Did you know? In the 18th century visitors could pay to see the royal menagerie with three half-pence or with a cat or dog to feed the lions.
02 St Michael's Mount
United Kingdom · 5.5 km from Penzance50.117° N 5.478° W
Image by LeeChandler from Pixabay In 1659 Colonel John St Aubyn bought the island, and his descendants, later the Lords St Levan, have lived in the castle ever since, gradually turning the monastic buildings into a family home. In 1954 the family gave most of the Mount to the National Trust while keeping a very long lease on the castle. Around the medieval church at the summit, gardens have been built on terraces cut into the granite on the sheltered side of the rock, where the warmth stored by the stone and the mild climate let exotic succulents and plants from far warmer countries flourish above the sea.
Did you know? A brass footprint at the top of the landing stage marks where Queen Victoria stepped ashore from the royal yacht in 1846.
03 Bamburgh Castle
United Kingdom55.609° N 1.711° W
Image by 18623647 from Pixabay Inside are the restored state rooms with their furniture and paintings and a museum devoted to Armstrong's engineering and armaments, with aviation artefacts from both world wars. But the setting is the masterpiece. Walk the beach at low tide in the evening, when the walls turn gold, or look back from the dunes toward Lindisfarne, about five miles to the north.
Did you know? In the dunes south of the castle, archaeologists found about 120 people buried in the 7th and 8th centuries, some of whom came from Scandinavia, the Mediterranean and North Africa.
04 Windsor Castle
United Kingdom · 26.1 km from Reading51.484° N 0.604° W
Image by diego_torres from Pixabay The finest single work at Windsor is St George's Chapel in the Lower Ward, begun by Edward IV in 1475 and one of the high points of the Perpendicular Gothic style. Henry VIII, Jane Seymour and Charles I are buried here, and the Order of the Garter still gathers in the chapel each year. Elsewhere, look for Queen Mary's Dolls' House, designed by Edwin Lutyens and furnished in miniature by the leading makers of the day, and walk out along the Long Walk, a tree-lined avenue running roughly two and a half miles south into Windsor Great Park, from where the castle rises on its ridge exactly as it was meant to be seen.
Did you know? Geoffrey Chaucer, serving as Clerk of the King's Works, oversaw restoration work on St George's Chapel for Richard II.
05 Eilean Donan Castle
United Kingdom57.274° N 5.516° W
Image by rzierik from Pixabay The best views are from the shore road near the visitor centre and from the slopes above Dornie, especially in the evening, when the light falls low across Loch Duich.
Did you know? When the Royal Navy took the castle in 1719 it found 343 barrels of gunpowder inside, and 27 barrels were used to blow the walls apart.
06 Bodiam Castle
United Kingdom51.002° N 0.544° E
Image by diego_torres from Pixabay The ivy-covered ruin became one of England's earliest tourist sights. Three owners saved it: "Mad Jack" Fuller, who bought it in 1829; George Cubitt; and Lord Curzon, who drained and cleaned the moat after buying it in 1916. Curzon left the castle to the National Trust in 1925. The outer walls, towers and gatehouse stand to their full height and were given new roofs by the National Trust, while the courtyard inside is open to the sky. The castle is a Grade I listed building and a Scheduled Monument. It appears in Monty Python and the Holy Grail and in several episodes of Doctor Who.
Did you know? Above the main gate are three carved shields, for Dalyngrigge, his wife's Wardeux family and his mother's Radynden family, topped by a helm with a unicorn-head crest.
07 Edinburgh Castle
United Kingdom · 1.1 km from Edinburgh55.949° N 3.201° W
Image by Walkerssk from Pixabay Look outwards as well as in. From the Argyle and Mills Mount batteries the view runs across the New Town grid to the Firth of Forth and the hills of Fife, and the esplanade in front of the gatehouse becomes, each August, the arena of the Royal Edinburgh Military Tattoo.
Did you know? In 1341 Scots disguised as Leith merchants stalled a supply cart in the gateway so the gates could not close, letting a hidden force storm in.
08 Caernarfon Castle
United Kingdom53.139° N 4.277° W
- UNESCO World Heritage
Tilman2007 · CC BY-SA 4.0 According to tradition, the future Edward II was born here in 1284. Ten years later Madog ap Llywelyn's rebels captured and burned the half-built castle. Owain Glyndŵr's forces besieged it without success in 1401–1404, and Parliamentarian troops besieged it three times during the English Civil War. After that it was left to decay until state-funded repairs began in the nineteenth century. The investitures of the Prince of Wales were held here in 1911 and 1969. Since 1986 the castle has been part of the World Heritage Site "Castles and Town Walls of King Edward in Gwynedd".
Did you know? Houses were cleared to make room for the castle, and their owners received compensation only three years later.
09 Leeds Castle
United Kingdom · 34.1 km from Southend-on-Sea51.249° N 0.630° E
Worldfootage · CC BY-SA 4.0 The castle's last private owner, Olive, Lady Baillie, bought it in 1926. She had the interiors redone first by the French designer Armand-Albert Rateau and then by the Parisian decorator Stéphane Boudin. In the 1930s she filled its rooms with politicians, royalty and film stars. During the Second World War it served as a hospital where burned Commonwealth airmen recovered. On her death in 1974 she left it to a charitable foundation so that the public could see it. Diplomacy has visited too. In July 1978 the foreign ministers of Egypt and Israel met the US Secretary of State here, a step towards the Camp David Accords, and in 2004 the castle hosted talks on Northern Ireland.
Did you know? The castle escaped destruction in the English Civil War because its owner, Sir Cheney Culpeper, sided with Parliament; it served as an arsenal and a prison.
10 Conwy Castle
United Kingdom53.280° N 3.826° W
- UNESCO World Heritage
Image by stevenm-s from Pixabay By the late 18th century the ruin had become a favourite subject of painters, J. M. W. Turner among them. Thomas Telford's suspension bridge of 1826, with towers styled to echo the castle's turrets, and Robert Stephenson's tubular railway bridge beside it brought road and rail right to its foot. Since 1986 the castle and walls have been part of the UNESCO World Heritage Site of the Castles and Town Walls of King Edward in Gwynedd.
Did you know? Conwy has the earliest surviving stone machicolations in Britain.
11 Harlech Castle
United Kingdom52.860° N 4.109° W
- UNESCO World Heritage
Image by diego_torres from Pixabay The castle then changed hands repeatedly. Owain Glyndŵr took it in 1404 and made it his home and headquarters, holding a parliament there in 1405, until English forces starved it into surrender in 1409. In the Wars of the Roses a Lancastrian garrison held out from 1461 until August 1468, a siege long linked to the stirring song "Men of Harlech". During the Civil War it was the last Royalist fortress on the mainland to give up, in March 1647, after which Parliament ordered it slighted. Its romantic ruin later drew painters including J. M. W. Turner and Paul Sandby. Since 1986 Harlech has formed part of the UNESCO World Heritage Site of Edward I's castles and town walls in Gwynedd.
Did you know? Its architect, Master James of St George, served as constable of Harlech from 1290 to 1293.
12 Cardiff Castle
United Kingdom · 0.9 km from Cardiff51.482° N 3.181° W
User: (WT-shared) Cardiff at wts wikivoyage · Public domain Cardiff, the capital of Wales, grew from a small market town into one of the world's great coal ports in the 19th century, largely on Bute money; Bute Park, once part of the family's estate, now runs along the River Taff into the heart of the city.
Did you know? Robert Curthose, eldest son of William the Conqueror, was imprisoned at Cardiff Castle from 1126 until his death in 1134.
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 castles in the United Kingdom?
- On our list, Tower of London ranks first, followed by St Michael's Mount and Bamburgh Castle.
- What is the oldest occupied castle in the world?
- Windsor Castle, founded by William the Conqueror in the 11th century, is generally described as the oldest and largest occupied castle in the world. It remains an official residence of the British monarch.
- Why did Edward I build castles in Wales?
- After conquering Wales in the late 13th century, Edward I built a chain of castles, including Caernarfon, Conwy, Harlech and Beaumaris, to secure his rule. Together they are listed as a UNESCO World Heritage Site.
- Can you walk to St Michael's Mount?
- Yes, at low tide a granite causeway connects St Michael's Mount to the town of Marazion in Cornwall. At high tide the island is cut off and reached by boat.
- How many castles are on this list in the United Kingdom?
- The list covers 12 castles.