The Most Beautiful UNESCO-Listed Castles, Palaces and Fortresses in Europe

50 places in 17 countries · updated 14 October 2026

1. 01 Schönbrunn Palace

   Schloss Schönbrunn

   Austria · 4.3 km from Vienna48.185° N 16.312° E

   • UNESCO World Heritage

   

   Schönbrunn was the summer residence of the Habsburgs, and it grew from a hunting ground. Emperor Maximilian II bought the floodplain of the Wien river in 1569 and stocked it with game; Eleonora Gonzaga added a palace in the 1640s, and the name, from a "beautiful spring" whose water was drunk at court, first appears in 1642.

   Did you know? In 1786 the Orangery hosted an imperial musical duel: Mozart's Der Schauspieldirektor and Salieri's Prima la musica e poi le parole were performed at opposite ends of the hall.

   More about Schönbrunn Palace →

2. 02 Tower of Hercules

   Torre de Hércules

   Spain · 6.3 km from A Coruña43.386° N 8.406° W

   • UNESCO World Heritage

   

   There were dozens of lighthouses like this one once, scattered around the edges of the Roman world. There is exactly one left that still works.

   Did you know? The 18th-century restoration was carried out by the naval engineer Eustaquio Giannini, and UNESCO later singled it out as exemplary for protecting the Roman core.

   More about Tower of Hercules →

3. 03 Diocletian's Palace

   Dioklecijanova palača

   Croatia · 2.9 km from Split43.508° N 16.438° E

   • UNESCO World Heritage

   

   Diocletian, the emperor who divided power among four rulers and then did something rare for a Roman emperor — abdicated, in 305 — chose a peninsula on the Dalmatian coast for his retirement, a few kilometres from Salona, the provincial capital.

   Did you know? According to ancient sources, when asked to return to power Diocletian replied that anyone who saw the cabbages he grew would never suggest it.

   More about Diocletian's Palace →

4. 04 Palace of Versailles

   Château de Versailles

   France · 1.1 km from Versailles48.805° N 2.120° E

   • UNESCO World Heritage

   

   Versailles began as a small brick-and-stone hunting lodge that Louis XIII built in 1623 amid marshes southwest of Paris, a building contemporaries mocked as a house of cards. His son turned it into the stage set of absolute monarchy.

   Did you know? Water was too scarce to run every fountain at once, so fountaineers whistled to each other as the king approached and shut each one off after he passed.

   More about Palace of Versailles →

5. 05 Spiš Castle

   Spišský hrad

   Slovakia · 34.5 km from Prešov49.001° N 20.768° E

   • UNESCO World Heritage

   

   Spiš Castle covers almost the whole top of a travertine hill above the town of Spišské Podhradie and the village of Žehra. With about 4 hectares inside its walls, it is one of the largest castle sites in Central Europe. Seen from the road, the long white spread of ruined walls along the ridge looks more like a fortified town than a castle.

   Did you know? The castle's travertine hill rises about 200 metres above the countryside, with near-vertical cliffs 20 to 40 metres high.

   More about Spiš Castle →

6. 06 Sanssouci Palace

   Schloss Sanssouci

   Germany · 2.2 km from Potsdam52.403° N 13.039° E

   • UNESCO World Heritage

   

   The name is the whole design brief: "sans souci," without a care, and Frederick the Great built exactly that — a single-storey retreat on a terraced vineyard hillside outside Potsdam, deliberately smaller and more intimate than the Baroque grandeur of Versailles it's often compared to.

   Did you know? The fountains Frederick planned for his gardens never worked in his lifetime; even with calculations by the mathematician Euler, the pumps failed and the project was abandoned in 1780.

   More about Sanssouci Palace →

7. 07 Holstentor

   Germany · 0.8 km from Lübeck53.866° N 10.680° E

   • UNESCO World Heritage

   

   Two squat round towers with conical caps, a stepped gable between them and a single arch at their feet: the Holstentor is the image of Lübeck, and for a long time of the Hanseatic League itself. It was built between 1464 and 1478 by the city architect Hinrich Helmstede, funded by a councilman's legacy, as the middle of what eventually became four successive gates on the western road towards Holstein.

   Did you know? The gate stands on an artificial mound about seven metres high, and its south tower was already sinking into the marshy ground while the builders were still at work.

   More about Holstentor →

8. 08 Quinta da Regaleira

   Portugal · 23.1 km from Lisbon38.796° N 9.396° W

   • UNESCO World Heritage

   

   Quinta da Regaleira is the most theatrical of Sintra's romantic estates — a four-hectare hillside of palace, chapel, woods, grottoes and shafts built as a riddle in stone.

   Did you know? Monteiro's library of about 30,000 volumes, weighing some 15 tonnes, was sold after his death and bought by the US Library of Congress between 1927 and 1929.

   More about Quinta da Regaleira →

9. 09 Alhambra

   Spain · 1.3 km from Granada37.176° N 3.588° W

   • UNESCO World Heritage

   

   The name comes from the Arabic for "the red one" — al-qal'a al-hamra, the red fortress — most likely a reference to the reddish clay used in its outer walls, visible at dusk when the whole hilltop seems to glow.

   Did you know? Retreating from Granada in 1812, Napoleon's troops tried to blow up the whole Alhambra; eight towers fell before a Spanish soldier, José García, cut the remaining fuses.

   More about Alhambra →

10. 10 Castel del Monte

    Italy · 26.1 km from Barletta41.085° N 16.271° E

    • UNESCO World Heritage

    

    Seen from the surrounding countryside of northern Apulia, Castel del Monte looks less like a fortress than a stone crown set on a hilltop 540 metres up. Frederick II, Holy Roman Emperor and King of Sicily, had it built in the 1240s; a document of 1240 already orders work on it. What makes it unlike any other castle is its geometry.

    Did you know? The castle combines local limestone, red coral breccia and marble, and the limestone shifts from white to pinkish as the light changes through the day.

    More about Castel del Monte →

11. 11 Tower of London

    United Kingdom · 3 km from London51.508° N 0.076° W

    • UNESCO World Heritage

    

    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.

    More about Tower of London →

12. 12 Nesvizh Castle

    Нясвіжскі палацава-паркавы комплекс

    Belarus53.223° N 26.692° E

    • UNESCO World Heritage

    

    Nesvizh Castle was the principal seat of the Radziwiłłs, the wealthiest magnate family of the Grand Duchy of Lithuania, and it is the grandest aristocratic residence surviving in Belarus. Its yellow Baroque ranges close around a courtyard entered through a gatehouse tower, with ponds and landscaped parkland around it.

    Did you know? Nesvizh had its own cannon foundry, the first in Belarus, which cast its first series of guns in 1576.

    More about Nesvizh Castle →

13. 13 Belém Tower

    Torre de Belém

    Portugal · 7 km from Lisbon38.691° N 9.216° W

    • UNESCO World Heritage

    

    The Tower of Saint Vincent, as it was officially named, was built in the 1510s and finished in 1519 to guard the mouth of the Tagus, completing a ring of river defences first planned by King John II and carried out by Manuel I. It stood on a basalt outcrop just off the Lisbon shore, and ships returning from India passed beneath it before reaching the city.

    Did you know? For about 250 years, from 1580 to 1830, the dark vaults of the bastion served as a prison.

    More about Belém Tower →

14. 14 Neuschwanstein Castle

    Schloss Neuschwanstein

    Germany47.557° N 10.749° E

    • UNESCO World Heritage

    

    The name suggests a medieval stronghold; the building is closer to a 19th-century stage set with plumbing. Ludwig II commissioned it in 1868, right after the Austro-Prussian War had stripped Bavaria of real independence and left him a king with a crown but shrinking power — and what he built instead of political influence was a retreat modelled on the operas of Richard Wagner, whom he'd idolised since adolescence.

    Did you know? It was inscribed on the UNESCO World Heritage List in July 2025 together with three other palaces of Ludwig II.

    More about Neuschwanstein Castle →

15. 15 Walls of Ávila

    Muralla de Ávila

    Spain40.657° N 4.707° W

    • UNESCO World Heritage

    

    The walls of Ávila wrap the whole of the old town in an unbroken ring of granite, and they are the reason the city looks, from the plain below, like an illumination in a medieval manuscript. Work on them traditionally begins in 1090, after the resettlement of the town, but most of what stands today dates from the 12th century, with later work into the 14th.

    Did you know? After Queen Joanna had a postern by the Dávila palace walled up in 1507, its lord opened a window there in 1542 inscribed "Where one door closes, another opens."

    More about Walls of Ávila →

16. 16 Porta Nigra

    Germany · 18.1 km from Grevenmacher49.760° N 6.644° E

    • UNESCO World Heritage

    

    The Porta Nigra is the only survivor of the four gates that once closed the roughly rectangular circuit of Roman Trier, and today it is one of the best-preserved Roman city gates north of the Alps. It was raised in the late second century, after about 170 AD, from large blocks of grey sandstone.

    Did you know? Tree-ring dating of timber from the city wall, published in 2018, fixed the start of construction at 170 AD, after estimates had ranged from the 2nd to the 4th century.

    More about Porta Nigra →

17. 17 Schwerin Castle

    Schweriner Schloss

    Germany · 1 km from Schwerin53.624° N 11.419° E

    • UNESCO World Heritage

    

    Schwerin Castle rises from a small island between Lake Schwerin and the city's old town, a riot of gilded domes, turrets and towers, and it is often called the "Neuschwanstein of the North". The site has been fortified since at least 973, when the Slavic Obotrites had a stronghold here.

    Did you know? The palace appears on a German two-euro commemorative coin issued in 2007, when Mecklenburg-Vorpommern held the presidency of the Bundesrat.

    More about Schwerin Castle →

18. 18 Cité de Carcassonne

    France43.206° N 2.364° E

    • UNESCO World Heritage

    

    The Cité de Carcassonne is the most complete fortified medieval town in Europe — a hilltop enclosed by two concentric rings of walls, about 3 km in total, punctuated by 52 towers, on the right bank of the Aude above the modern city. UNESCO inscribed it in 1997 as an exceptional example of a medieval fortress town, and also for the way it was saved in the 19th century.

    Did you know? The board game Carcassonne, released in 2000, was created by Klaus-Jürgen Wrede after the landscape around the city inspired him.

    More about Cité de Carcassonne →

19. 19 Malbork Castle

    Zamek w Malborku

    Poland · 27.7 km from Elbląg54.040° N 19.028° E

    • UNESCO World Heritage

    

    The Teutonic Knights began building at Malbork around 1274, but the decision to make it their capital came in 1309, after they lost their last footholds in the eastern Mediterranean and needed a new centre of gravity entirely inside their own conquered territory in Prussia.

    Did you know? Measured by land area, Malbork is the largest castle in the world: its outer walls enclose about 21 hectares, four times the area of Windsor Castle.

    More about Malbork Castle →

20. 20 Palau Güell

    Spain · 0.9 km from Barcelona41.379° N 2.174° E

    • UNESCO World Heritage

    

    Before Gaudí became the architect of endless curves and biomorphic facades, he had to prove himself on a plot barely 18 by 22 metres wide, hemmed in on a narrow street in Barcelona's old quarter.

    Did you know? It was listed by UNESCO in 1984, among the first group of Gaudí's works to receive World Heritage status.

    More about Palau Güell →

21. 21 Castelgrande

    Switzerland · 0.5 km from Bellinzona46.193° N 9.023° E

    • UNESCO World Heritage

    

    Castelgrande is the oldest and largest of the three castles of Bellinzona, set on a steep outcrop of gneiss that rises straight out of the town. Bellinzona sits where the routes from several Alpine passes, the St Gotthard, the Lukmanier, the San Bernardino and the Nufenen, come together on their way south, and whoever held this rock held the road to Italy.

    Did you know? Archaeologists have traced continuous settlement on the castle rock back to the 4th millennium BC.

    More about Castelgrande →

22. 22 Kroměříž Castle

    Czech Republic · 20.3 km from Zlín49.300° N 17.393° E

    • UNESCO World Heritage

    

    For centuries the small Moravian town of Kroměříž was the summer seat of the bishops — from 1777 archbishops — of Olomouc, and their residence here, together with two very different gardens, was listed as a World Heritage Site in 1998. UNESCO's reasoning is candid: the palace is a fine but typical princely residence; what is rare is the Baroque garden layout that survives around it almost intact.

    More about Kroměříž Castle →

23. 23 Palace of Fontainebleau

    Château de Fontainebleau

    France · 14.8 km from Melun48.402° N 2.701° E

    • UNESCO World Heritage

    

    Fontainebleau is the palace where French kings lived for eight centuries, and it shows every one of them. It began as a hunting lodge in the forest, recorded under Louis VII in 1137, and nearly every ruler afterwards added a wing, a courtyard or a staircase, so that the buildings sprawl across several courts in a mix of styles that no single plan ever tidied up.

    Did you know? Thomas Becket, Archbishop of Canterbury, consecrated the chapel of the royal castle here in 1169.

    More about Palace of Fontainebleau →

24. 24 Suomenlinna

    Finland · 3.7 km from Helsinki60.144° N 24.984° E

    • UNESCO World Heritage

    

    Suomenlinna is a sea fortress spread across eight islands at the mouth of Helsinki's harbour, six of them fortified, and it is still a lived-in neighbourhood of the city, with about 900 permanent residents. Sweden began building it in 1748, when Finland was part of the Swedish realm, as a naval base and bulwark against a Russia that had grown into a Baltic power after the founding of St Petersburg.

    Did you know? Houses on Suomenlinna have no street addresses: each carries a letter for its island and a number, so C 83 means house 83 on Iso Mustasaari.

    More about Suomenlinna →

25. 25 Royal Alcázar of Segovia

    Real Alcázar de Segovia

    Spain40.953° N 4.133° W

    • UNESCO World Heritage

    

    The Alcázar of Segovia stands at the very western end of the old city, on a rock spur where the Eresma and Clamores rivers meet, so that from the valley floor it seems to grow straight out of the cliff.

    Did you know? The castle's silhouette is widely cited as an inspiration for the castle in Disney's 1937 Snow White and the Seven Dwarfs.

    More about Royal Alcázar of Segovia →

26. 26 Aljafería

    Spain · 0.9 km from Zaragoza41.656° N 0.897° W

    • UNESCO World Heritage

    

    The Aljafería is the finest surviving building from the taifa kingdoms, the patchwork of Muslim states that followed the break-up of the Caliphate of Córdoba. It was raised in Zaragoza for Ahmad al-Muqtadir of the Banu Hud dynasty and largely finished between 1065 and 1081.

    Did you know? The palace's architect is known by name: a Slav called Zuhayr, recorded by a Zaragoza writer active in the late eleventh century.

    More about Aljafería →

27. 27 Herrenchiemsee Palace

    Neues Schloss Herrenchiemsee

    Germany · 20.2 km from Rosenheim47.860° N 12.402° E

    • UNESCO World Heritage

    

    On an island in the Chiemsee in southern Bavaria, King Ludwig II of Bavaria tried to build his own Versailles.

    Did you know? About 16.6 million marks were spent on Herrenchiemsee, more than Linderhof and Neuschwanstein together, pushing the royal finances close to bankruptcy.

    More about Herrenchiemsee Palace →

28. 28 Palais des Papes

    France · 39.1 km from Nîmes43.951° N 4.808° E

    • UNESCO World Heritage

    

    For most of the fourteenth century the centre of Western Christendom was not Rome but a rock above the Rhône. The papacy settled in Avignon in 1309, and over the following decades the popes turned an episcopal residence into the Palais des Papes, a fortress and court rolled into one and the largest Gothic palace in Europe, with some 15,000 square metres of floor space.

    Did you know? In June 1348 Pope Clement VI bought the city of Avignon itself from Queen Joanna I of Naples for 80,000 florins.

    More about Palais des Papes →

29. 29 Conwy Town Walls

    United Kingdom53.281° N 3.831° W

    • UNESCO World Heritage

    

    3 km long, with 21 towers and three gateways, still wrapped around the small town at the mouth of the Conwy river in North Wales. Edward I had them built between 1283 and 1287, together with the castle at their corner, as part of his conquest of Wales; the works were directed by Master James of St George.

    Did you know? Edward I founded the town on the site of Aberconwy Abbey, a Cistercian house favoured by the Welsh princes, which he moved about eight miles inland.

    More about Conwy Town Walls →

30. 30 Pena Palace

    Portugal · 22.3 km from Lisbon38.788° N 9.391° W

    • UNESCO World Heritage

    

    Pena Palace looks like a dream that someone decided to build. From the woods above Sintra it rises on a rocky peak in a jumble of towers, domes, crenellations and terraces, painted in strong ochre yellow and deep red, with a clock tower, onion-topped turrets and battlements that seem to belong to five different countries at once.

    Did you know? A cross has marked the nearby High Cross, at 528 metres the highest point of the Sintra hills, since King John III first raised one in 1522.

    More about Pena Palace →