Best Bastioned
The Fortress of Suomenlinna is an eighteenth-century maritime fortification built across islands off Helsinki, Finland. Sweden began construction in 1748 as Sveaborg to strengthen its position in the eastern Baltic, and the complex later became Finnish Suomenlinna after Finland’s separation from Swe...
Castillo San Felipe de Barajas is a Spanish colonial fortress on San Lázaro Hill in Cartagena, Colombia. It originated in the sixteenth century and was expanded into a large bastioned defense with artillery platforms, internal passages, and tunnels designed to control approaches to the city. The sit...
Castillo San Cristóbal is an eighteenth-century Spanish fortress guarding the landward approaches to San Juan, Puerto Rico. Its layered walls, bastions, plazas, tunnels, and artillery positions formed part of the wider defensive system surrounding the colonial city and complemented the seaward defen...
San Pedro de la Roca Castle is a Spanish coastal fortress at the entrance to Santiago de Cuba’s harbor. Built and expanded during the 17th century, it uses terraces, walls, platforms, and bastions adapted to a steep rocky shoreline in order to defend the bay. The castle is a UNESCO World Heritage Si...
Spandau Citadel is a Renaissance fortress in Berlin, Germany, constructed between the sixteenth and early seventeenth centuries on the site of an earlier medieval fortification. Its bastioned plan, walls, gates, and moat reflect the development of gunpowder-era defensive architecture, while the pres...
The Fortress of Rethymno, known as the Fortezza, is a Venetian citadel on Paleokastro hill above Rethymno in Crete, Greece. Construction began in 1573 and continued through the late sixteenth century to protect the city and provide refuge during attacks. The enclosed complex contains defensive walls...
Špilberk Castle is a historic fortress in Brno, Czech Republic, whose origins date to the thirteenth century. It was expanded and modified over time, including conversion into a Baroque citadel, and became known under the Habsburg monarchy for its prison and casemates. The complex now houses exhibit...
Fort Henry National Historic Site is a nineteenth-century British military fortress on a height above Kingston, Ontario. The present fort was constructed in the 1830s to protect the entrance to the Rideau Canal, the naval dockyard, and important transport routes from possible attack from the United...
Fredriksten Fortress is a fortified complex above Halden in southeastern Norway, developed during the seventeenth century to defend the border with Sweden. Its walls, bastions, and surrounding works occupy high ground above the town and reflect the strategic importance of the area after the territor...
The Petersberg Citadel is a substantial Baroque fortress on Petersberg hill in Erfurt, Germany. Construction began in the seventeenth century, and the complex developed into a star-shaped defensive system with bastions, walls, gates, and military buildings. Much of the fortification remains integrat...
Fortaleza del Real Felipe is a large bastion fortress in Callao, Peru, constructed by the Spanish crown in the 18th century to protect the port of Callao and the approaches to Lima. Work began in 1747 after the earthquake and tsunami of 1746, and the defensive complex uses angled walls, bastions, an...
Montjuïc Castle is a fortified complex on Montjuïc hill overlooking Barcelona, Spain. Its present structure developed from an earlier hilltop defense and was expanded into a major military fortress in the 17th century; it later served as a prison and military installation. The castle is now a civic...
The Jülich Citadel is a Renaissance fortress in Jülich, North Rhine-Westphalia, Germany. Built in the 16th century for William V, Duke of Jülich-Cleves-Berg, it was planned by the Italian architect Alessandro Pasqualini and combined a regular bastioned defense with a princely residence. Its survivin...
The Citadel of Port-Louis is a coastal fortress in Port-Louis, Brittany, France, guarding the entrance to the harbor of Lorient. A fortification established by the Spanish in the late 16th century was later taken over and expanded by France into a bastioned complex. The citadel now houses maritime a...
The Citadel of Saint-Tropez is a hilltop fortress overlooking the Mediterranean port of Saint-Tropez in southeastern France. Construction began in the early 17th century as part of the town’s coastal defenses, and the complex later became the Museum of Maritime History, which opened in 2013 after re...
Old Fort Erie is a reconstructed military site and National Historic Site in Ontario, Canada, associated with the War of 1812. American forces captured the fort in July 1814, used it as a base, and later defended it during a British siege before destroying it during their retreat. The present site i...
Landskrona Citadel is a fortified complex in Landskrona, Scania, Sweden, built by Denmark between 1549 and 1559 during the period when the region was Danish. The fortress later served as a prison, including a facility for inmates serving life sentences from the 19th century. Its broad defenses, moat...
The Citadel of Brouage is a fortified settlement in the Charente-Maritime department of western France, built during the sixteenth century in the marshes near the Atlantic coast. Its defensive system includes substantial stone ramparts, bastions, gates, and other military structures. Brouage develop...
The Royal Citadel is a bastioned fortress overlooking Plymouth Sound in Plymouth, England. Construction was ordered by King Charles II in 1665 as part of a wider effort to strengthen the port's defenses and reinforce royal authority after the English Civil War. The citadel remains associated with th...
Mainz Citadel is a historic 17th-century fortress on the Jakobsberg in Mainz, Germany. It forms part of the city's former defensive system and is characterized by bastioned fortification works developed during the early modern period. The site preserves military architecture associated with Mainz's...
The Verne Citadel is a 19th-century coastal fortress on the Isle of Portland in Dorset, England. Built in 1857 using convict labor, it formed part of the defenses protecting Portland Harbour and reflects Victorian military engineering, with earthworks, bastions, and enclosed defensive structures. Th...
The Citadel of Amiens is a bastioned fortress in Amiens, in northern France. Henri IV ordered its construction after the Spanish capture of Amiens in 1597, and the engineer Jean Errard directed work carried out mainly from 1598 to 1610 and completed in 1622. The pentagonal stronghold has five bastio...
The Wesel Citadel is a historic fortified complex in Wesel, North Rhine-Westphalia, Germany. It was built for Brandenburg-Prussia in the late seventeenth century as a bastioned stronghold connected with the defense of the western territories and the Rhine frontier. Unlike a single isolated tower or...
