The Most Impressive Fortresses in the World

51 places in 30 countries · updated 14 October 2026

1. 01 Spinalonga

   Σπιναλόγκα

   Greece · 34.5 km from Sitia35.297° N 25.738° E

   

   A small, rocky island at the mouth of the Gulf of Elounda in eastern Crete is ringed almost entirely by Venetian walls and bastions, and its lanes still hold the houses and public buildings of a community that lived here in enforced isolation. Spinalonga covers only about 8.5 hectares, yet it carries four centuries of layered history: a sea fortress, an Ottoman village and, for half a century, one of the last leper colonies in Europe.

   Did you know? The name is a Venetian mishearing: Greek speakers said stin Elounda, to Elounda, which Venetian ears turned into spina longa, long thorn.

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2. 02 Tsarevets

   Царевец

   Bulgaria · 0.4 km from Veliko Tarnovo43.083° N 25.653° E

   

   For two centuries the rocky hill of Tsarevets was the beating heart of the Second Bulgarian Empire. Between 1185 and 1393 it served as the chief stronghold of the capital Tarnovo, sheltering both the royal palace and the seat of the Bulgarian patriarch. People had lived here since the second millennium BC, and an early Byzantine town stood on the summit before the Bulgarian fortress rose on top of it in the 12th century.

   Did you know? In 1300 Patriarch Joachim III was put to death at Execution Rock above the Yantra on the orders of Tsar Theodore Svetoslav.

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3. 03 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. Together with the Corpus Christi Church in the town it was inscribed as a World Heritage Site in 2005, recognised for its influence on the architecture of Central and Eastern Europe.

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

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4. 04 Palamidi

   Παλαμήδι

   Greece · 38 km from Tripoli37.562° N 22.804° E

   

   Palamidi crowns a 216-metre hill above Nafplio, and it is a textbook baroque fortress. The Venetians, who held the Peloponnese for a second time between 1686 and 1715, built it in a remarkably short burst of work completed in 1714, to plans by the engineer Antonio Giancix and with the French military engineer Pierre de la Salle in charge of construction. Its bastions are strung out along the crest of the hill.

   Did you know? The climb from the old town is famed as 999 steps, but the staircase actually has 857.

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5. 05 Khotyn Fortress

   Хотинська фортеця

   Ukraine · 19.1 km from Kamianets-Podilskyi48.522° N 26.498° E

   

   Khotyn Fortress rises from a rocky shelf on the high right bank of the Dniester in the town of Khotyn, in Ukraine's Chernivtsi Oblast. The river crossing here lay on old trade routes between the Baltic, Kyiv and the Black Sea, and the site has been fortified since the time of Kievan Rus', when an earthen mound with wooden walls guarded the crossing and a first, small stone building stood where the northern tower is now. Between 1250 and 1264 Prince Danylo of Halych and his son Lev rebuilt it in stone, but the fortress that survives is essentially Moldavian.

   Did you know? In the 1621 Battle of Khotyn, a Commonwealth and Cossack force of about 50,000 held off an Ottoman army estimated at roughly 100,000.

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6. 06 Amber Fort

   India · 8.1 km from Jaipur26.986° N 75.851° E

   • UNESCO World Heritage

   

   Amber Fort — or Amer, after the town below it — was the seat of the Kachhwaha Rajput rulers until they moved to their newly planned city of Jaipur in 1727. The palace was begun under Raja Man Singh, expanded by Jai Singh I in the early 1600s, and extended further by his successors over the next 150 years. It stands on a ridge of the Aravalli hills above Maota Lake, its red sandstone and marble buildings and long ramparts climbing the slope. Higher still, on the Hill of Eagles, Jaigarh Fort guards it; the two are linked by an underground passage built as an escape route. In 2013 Amber became a UNESCO World Heritage Site, one of the six Hill Forts of Rajasthan.

   Did you know? A carved marble panel near the Mirror Palace hides a magic flower: covering parts of it by hand reveals seven motifs, including a cobra and a scorpion.

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7. 07 Gwalior Fort

   India · 3.4 km from Gwalior26.230° N 78.169° E

   

   A sheer sandstone plateau about 3 km long rises abruptly from the plain of northern Madhya Pradesh, and its whole crown is walled. Gwalior Fort has been fortified since at least the eighth century and possibly much earlier, and over twelve centuries it passed through the hands of the Pratiharas, the Kachchhapaghatas, the Delhi Sultanate, the Tomars, the Mughals, the Marathas of the Scindia family and, for a time, the British. Each left buildings on the summit, so the fort is less a single castle than a hilltop city of palaces, temples and water tanks.

   Did you know? The Mughal emperor Babur called it the pearl among the fortresses of Hind, which not even the winds could touch.

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8. 08 Ivangorod Fortress

   Russia · 2.7 km from Narva59.375° N 28.208° E

   

   Few places on earth stage a medieval standoff as literally as the Narva River. On its west bank stands Hermann Castle in Estonia; on the east bank, barely a stone's throw away, rises Ivangorod Fortress in Russia. Grand Prince Ivan III of Moscow had it raised in a single summer in 1492, on a hill called Maiden's Mount, as a deliberate answer to the knights across the water and as a claim on Muscovy's route to the Baltic. The town that grew up around it still carries his name.

   Did you know? In 1496, just four years after it was built, a Swedish force of about 5,000 men on 70 ships stormed the fortress in no more than seven hours.

   More about Ivangorod Fortress →

9. 09 Masada

   Israel · 35 km from Hebron31.316° N 35.354° E

   • UNESCO World Heritage

   

   Masada is a natural fortress: a flat-topped block of rock in the Judaean Desert whose sides drop about 400 m on the east towards the Dead Sea and some 90 m on the west. The summit plateau is roughly 550 m long and 270 m wide. Between about 37 and 31 BC Herod the Great turned it into a fortified refuge, ringing it with a casemate wall about 1,300 m long, storerooms, bathhouses and huge rock-cut cisterns filled by flash floods, and building two palaces, including one that steps down the northern cliff on three terraces. It is one of the finest surviving examples of Herodian architecture and has been a World Heritage Site since 2001.

   Did you know? A 2,000-year-old date palm seed from the excavations was germinated into a living tree, nicknamed Methuselah, and it remains the oldest known germination from a seed.

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10. 10 Belogradchik Fortress

    Белоградчишка крепост

    Bulgaria43.623° N 22.677° E

    

    Belogradchik Fortress is one of those places where nature did half the engineering. On the northern slopes of the Balkan Mountains, the Romans used the famous Belogradchik Rocks — natural stone pillars up to 70 metres high — as ready-made walls, building masonry only on the northwest and southeast sides where the rock left gaps. The result is a stronghold that seems to grow out of a stone forest, and it is among the best preserved in Bulgaria.

    Did you know? Locals simply call the fortress Kaleto, from the Turkish word kale, meaning fortress.

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11. 11 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.

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12. 12 Lovrijenac

    Croatia · 2.5 km from Dubrovnik42.641° N 18.104° E

    

    Fort Lovrijenac, the fortress of St Lawrence, stands on a sheer rock 37 metres above the sea just outside Dubrovnik's western walls, and it earned the nickname "Dubrovnik's Gibraltar". From this perch it commands both the approach by sea and the land road to the Pile Gate. The city's chronicles tell a proud story: when Venice planned to build its own fort on the same rock to keep the city under control, the citizens raced ahead and raised theirs in just three months, so the Venetian ships loaded with building material had to sail home. Chroniclers date the fort to the early 11th century, though the first written record comes from 1301, when the city council appointed its commander.

    Did you know? In Game of Thrones the fort stood in for the Red Keep of King's Landing, and many of the Red Keep scenes were shot inside its walls.

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13. 13 Rumeli Hisarı

    Turkey · 10.1 km from Istanbul41.085° N 29.056° E

    

    Rumelihisarı was built for a single purpose, and it achieved it. In 1452 the young Ottoman sultan Mehmed II was preparing to take Constantinople, and his father's earlier attempt had shown that a Byzantine fleet on the Bosphorus could make a siege fail. So he chose the narrowest point of the strait, about 660 metres wide, on the European shore directly across from the older Anatolian fortress, Anadoluhisarı, and ordered a fortress there. Construction began on 15 April 1452. The two fortresses together closed the Bosphorus to shipping, cutting the city off from help from the Black Sea, and in 1453 Constantinople fell. The Turks called the new castle Boğazkesen, "the strait-cutter"; since boğaz also means throat, the name had a grim second sense.

    Did you know? The whole fortress was finished in about four and a half months, completed on 31 August 1452 by a workforce numbering in the thousands.

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14. 14 Golubac Fortress

    Голубачки Град

    Serbia44.661° N 21.678° E

    

    Golubac Fortress guards the gateway to the Iron Gates, the long gorge where the Danube squeezes through the Carpathians between Serbia and Romania. It stands on the Serbian bank a few kilometres downstream from the town of Golubac, at a point where the river is exceptionally broad, with Romania's village of Coronini on the far shore. Ten towers climb from the water's edge up a steep crag, linked by walls two to three metres thick, and the silhouette, a staircase of battlements stepping up the rock, is one of the most dramatic of any castle on the river.

    Did you know? In the Middle Ages a heavy chain is said to have stretched from the fortress to Babakaj, a rock on the far bank, letting Golubac control and tax river traffic.

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15. 15 Pskov Krom

    Russia · 1 km from Pskov57.821° N 28.329° E

    

    The Pskov Krom is the kremlin at the very origin of the city: a narrow, high promontory where the Pskova River flows into the Velikaya, fortified since at least the 8th century and first named in the chronicles as the "Krom" in 1113. The ensemble covers the Krom itself, about 3.5 hectares, and the adjoining Dovmont's Town, about 1.5 hectares, named after the 13th-century prince who walled it. In the days of the Pskov Republic, from the 14th to the early 16th century, this was the political and spiritual core of the land: the veche assembly met on the square beside the cathedral, next to the kremlin's storehouses.

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16. 16 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. Admiral Augustin Ehrensvärd directed the work, adapting the star-shaped bastions of French military engineering to a rocky archipelago; by 1750 more than 6,000 men were at work. The Swedes called it Sveaborg, the Fortress of Sweden.

    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.

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17. 17 Fenestrelle Fort

    Forte di Fenestrelle

    Italy45.032° N 7.057° E

    

    A single chain of bastions, barracks and batteries climbs a whole mountainside above the Chisone Valley in Piedmont, linked from bottom to top by a covered stairway of nearly 4,000 steps. Fenestrelle Fort is one of the largest fortifications in Europe: its works spread over about 130 hectares and climb from roughly 1,100 to some 1,800 metres above sea level, joined by a continuous wall about 3 km long.

    Did you know? The fortress is said to have held Pierre Picaud, the real-life prisoner whose story inspired Edmond Dantès in Dumas's The Count of Monte Cristo.

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18. 18 Hohensalzburg Fortress

    Festung Hohensalzburg

    Austria · 1.8 km from Salzburg47.795° N 13.047° E

    

    Hohensalzburg Fortress covers the whole top of the Festungsberg, 506 metres above sea level, and at about 250 by 150 metres it is one of the largest medieval castles in Europe. It was begun in 1077 by Archbishop Gebhard of Salzburg, who had sided with Pope Gregory VII against Emperor Henry IV in the Investiture Controversy and needed a refuge. The first castle was a simple bailey with wooden walls; the prince-archbishops, who ruled Salzburg as a state of their own, enlarged it for four hundred years. Burkhard II von Weisspriach added the ring walls and towers in 1462, and Leonhard von Keutschach, archbishop from 1495 to 1519, gave it much of its present form, marking his work everywhere with the turnip from his coat of arms. The outer bastions followed in the 16th and 17th centuries, when a Turkish invasion was feared.

    Did you know? The Salzburg Bull, the barrel-driven horn organ in the Krautturm, is considered the oldest working instrument of its kind in the world.

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19. 19 Fasil Ghebbi

    Ethiopia · 1.1 km from Gondar12.608° N 37.470° E

    • UNESCO World Heritage

    

    Fasil Ghebbi is a castle compound unlike anything else in Africa: a walled royal enclosure in the middle of Gondar, filled with palaces built by successive Ethiopian emperors. Until the seventeenth century the emperors ruled from moving camps, living in tents as they travelled across their realm. Emperor Fasilides broke with that tradition, made Gondar his fixed capital, and in the 1640s began the great stone castle that gave the compound its name — ghebbi is Amharic for an enclosure. A Yemeni envoy who saw it in 1648 described it as one of the most marvellous buildings he had seen, and named its architect as an Indian, Abdal Kerim. Later palaces were the work of an Ethiopian architect, Walda Giyorgis, and much of the stonework was done by the Beta Israel, Ethiopian Jewish craftsmen.

    Did you know? An Armenian envoy, Khoja Murad, visited the palace in 1696 and claimed that at least 80 royal children were running freely around the compound.

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20. 20 Peter and Paul Fortress

    Russia · 1 km from Saint Petersburg59.950° N 30.317° E

    • UNESCO World Heritage

    

    Saint Petersburg began here. On 27 May 1703 (16 May Old Style) Peter the Great founded a fortress on Hare Island on the Neva, and the city counts its birthday from that day. The earthen defences were soon replaced in stone to designs by the Swiss-Italian architect Domenico Trezzini, and work went on from 1706 to 1740. The result is a six-bastion star fortress; the bastions are named after Peter himself and five of his closest associates, among them Menshikov, Naryshkin and Trubetskoy. Paradoxically, a fortress built to guard Russia's new outlet to the Baltic never fired in battle.

    Did you know? Peter the Great's own son, Tsarevich Alexei, was imprisoned in the fortress in 1718 and died there that year.

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21. 21 Hwaseong Fortress

    South Korea · 2.3 km from Suwon37.281° N 127.010° E

    • UNESCO World Heritage

    

    Hwaseong is a fortress built out of grief and ambition. King Jeongjo of Joseon raised it between 1794 and 1796 around the town of Suwon to honour his father, Crown Prince Sado, whom Jeongjo's own grandfather, King Yeongjo, had put to death by locking him in a rice chest. The king moved his father's remains nearby and, it seems, planned to move the capital here too, away from the factional feuds of the court in Seoul. The result is a walled city whose ramparts, gates and towers still ring the centre of modern Suwon.

    Did you know? Building the fortress took about 700,000 person-hours and cost the treasury 870,000 nyang, plus 1,500 sacks of rice to pay the workers.

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22. 22 Qazan Kremlin

    Russia · 5.2 km from Kazan55.797° N 49.107° E

    • UNESCO World Heritage

    

    The white-walled citadel of Kazan is where two worlds meet. It stands on the site of the fortress of the Kazan khans, which Ivan the Terrible's army captured in 1552; the tsar then had it rebuilt in stone by Pskov masters Postnik Yakovlev and Ivan Shiryay, known as Barma. Their Annunciation Cathedral, built between 1554 and 1562 from local pale sandstone rather than brick, is the oldest building inside. The walls and towers themselves date from the 16th and 17th centuries, with later renovations, and the Spasskaya Tower at the southern end still serves as the main gate.

    Did you know? Postnik Yakovlev and Barma, the Pskov masters who rebuilt the kremlin in stone, are the same builders credited with St Basil's Cathedral in Moscow.

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23. 23 Bahla Fort

    Oman · 24 km from Nizwa22.964° N 57.301° E

    • UNESCO World Heritage

    

    Bahla Fort rises from the oasis of Bahla at the foot of the Jebel Akhdar highlands, one of four great historic forts in the region and the first place in Oman to be added to the UNESCO World Heritage list, in 1987. It is believed to have been built between the 12th and 15th centuries by the Banu Nebhan, a tribe that controlled the frankincense trade, and it is a monument to building in earth: its towers and walls are made of mud brick with straw, on stone foundations.

    Did you know? Bahla was a seat of the Nabhani dynasty, first as a second capital after Nizwa and then, from the mid-16th century to 1624, as its main capital.

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24. 24 Königstein Fortress

    Festung Königstein

    Germany · 28.5 km from Ústí nad Labem50.919° N 14.058° E

    

    Königstein Fortress crowns a sandstone table mountain 240 metres above the Elbe in Saxon Switzerland, one of the largest hilltop fortifications in Europe. The plateau covers 9.5 hectares and is ringed by a rampart walk of about 1.8 km, where masonry up to 42 metres high merges with sheer natural rock faces. More than fifty buildings stand inside, some over four centuries old, and from the walls the view reaches across the Elbe to the Lilienstein and the other flat-topped rocks of the Elbe Sandstone Mountains.

    Did you know? Before it was a fortress, the plateau held a Celestine monastery founded in 1516 by Duke George the Bearded and dissolved in 1542 after the Reformation.

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25. 25 Kremlin

    Russia · 0.4 km from Moscow55.752° N 37.618° E

    • UNESCO World Heritage

    

    The Moscow Kremlin is a walled citadel on Borovitsky Hill, where the Neglinnaya once flowed into the Moskva River. It has been the seat of Russian power, with interruptions, for most of the last seven centuries. A timber fort stood here in the 12th century. Ivan I rebuilt it in oak in 1339, and Dmitry Donskoy replaced that with white limestone in the 1360s. The red-brick walls and towers seen today date from 1485–1495. They were built for Ivan III by Italian engineers, above all Pietro Antonio Solari, whose name is still carved in Latin over the Spassky Gate. The wall runs for about 2.2 km around an irregular triangle, between 5 and 19 metres high depending on the ground, and has twenty towers. The tallest, the Troitskaya, reaches 80 metres. The illuminated stars on several towers replaced golden eagles in Soviet times.

    Did you know? The 202-tonne Tsar Bell has never rung: water thrown on it during a 1737 fire cracked it and broke off a slab weighing over 10 tonnes.

    More about Kremlin →

26. 26 Morro Castle

    Castillo de los Tres Reyes del Morro

    Cuba · 2.1 km from Havana23.150° N 82.357° W

    

    Rising straight out of the rock at the mouth of Havana Bay, the pale stone walls of the Castillo de los Tres Reyes del Morro have watched every ship enter Cuba's capital for more than four centuries. The name honours the Three Kings of the Bible, while "morro" is the Spanish word for a headland rock that serves sailors as a landmark. Work began in 1589, after repeated raids on the city, to designs by the Italian military engineer Battista Antonelli, who shaped many of Spain's Caribbean defences.

    Did you know? The British finally took the Morro in 1762 by tunnelling a mine under one of its bastions and blowing a breach in the wall.

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27. 27 Jaisalmer Fort

    India26.913° N 70.913° E

    • UNESCO World Heritage

    

    Jaisalmer Fort is one of the very few living forts in the world. Roughly a quarter of the old city's population still lives inside its walls, some 4,000 people, many descended from the Brahmin and Rajput families who once served the Bhati rulers and earned the right to live on the hilltop. Built in 1156 by Rawal Jaisal on Trikuta Hill in the Thar Desert, it stood at a crossroads of caravan routes, and for most of its history the fort simply was the city; the first settlements outside its walls appeared only in the 17th century. Its yellow sandstone glows tawny by day and honey-gold at sunset, which gave it the name Sonar Quila, the Golden Fort.

    Did you know? The fort's Jain library holds the earliest known painted palm-leaf manuscript, a copy of the Oghaniryukti dated 1060.

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28. 28 Brimstone Hill Fortress National Park

    Saint Kitts and Nevis · 13.6 km from Basseterre17.347° N 62.836° W

    • UNESCO World Heritage

    

    Brimstone Hill rises almost 300 metres straight up from the Caribbean shore of St Kitts, and the fortress that crowns it earned the name "Gibraltar of the Caribbean". British military engineers designed it; enslaved Africans built and maintained it. Today it is one of the best preserved historic fortifications in the Americas and a UNESCO World Heritage Site, valued as a monument both to European colonial rivalry and to the labour of the people who raised it.

    Did you know? The fortress walls were cut from the hill's own hard volcanic rock, and the mortar binding them was burned on site from limestone on its slopes.

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29. 29 Mehrangarh Fort

    India · 0.6 km from Jodhpur26.298° N 73.019° E

    

    Rao Jodha, founder of Jodhpur, moved his capital to this outcrop in 1459 for defensive reasons that were entirely practical — a taller, more isolated rock than the one his old fort at Mandore sat on. The name he gave it, Mehrangarh, "fort of the sun," reached for something less practical: it was a claim to descent from the sun god Surya, the mythical ancestor of his clan, built into the fort's name as a statement of legitimacy as much as a description.

    Did you know? Rudyard Kipling likened the fort to a palace built by Titans and coloured by the morning sun.

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30. 30 Anacopia Fortress

    Georgia · 19.2 km from Sukhumi43.094° N 40.808° E

    

    Anacopia Fortress crowns Mount Iverian above New Athos, with the Black Sea spread out below. It is one of the best-preserved early medieval strongholds on the eastern shore of that sea. The walls enclose an area of about 450 by 150 metres. Their main line was built at the end of the 7th century with Byzantine help, when Constantinople was alarmed by Arab expansion into the Caucasus. They are made of carefully dressed limestone blocks, with square towers on the steeper ground and round ones where attackers could bring up siege engines. The gate was set high above ground, so it could be reached only by a movable ladder.

    Did you know? According to the Georgian chronicle, Marwan's besieging army numbered about 60,000 men, and disease alone carried off some 35,000 of them.

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