A barbican is a fortified outpost or fortified gateway, such as at an outer defense perimeter of a city or castle, or any tower situated over a gate or bridge which was used for defensive purposes.
A concentric castle is a castle with two or more concentric curtain walls, such that the outer wall is lower than the inner and can be defended from it. The layout was square where the terrain permitted, or an irregular polygon where curtain walls of a spur castle followed the contours of a hill.
A postern is a secondary door or gate in a fortification such as a city wall or castle curtain wall. Posterns were often located in a concealed location which allowed the occupants to come and go inconspicuously. In the event of a siege, a postern could act as a sally port, allowing defenders to make a sortie on the besiegers. Placed in a less exposed, less visible location, they were usually relatively small, and therefore easily defensible.
Neuf-Brisach is a fortified town and commune of the department of Haut-Rhin in the French region of Alsace. The fortified town was intended to guard the border between France and the Holy Roman Empire and, subsequently, the German states. It was built after the Treaty of Ryswick in 1697 that resulted in France losing the town of Breisach, on the opposite bank of the Rhine. The town's name means New Breisach.
Enceinte is a French term that refers to the "main defensive enclosure of a fortification". For a castle, this is the main defensive line of wall towers and curtain walls enclosing the position. For a settlement, it would refer to the main town wall with its associated gatehouses, towers, and walls.
The Floriana Lines are a line of fortifications in Floriana, Malta, which surround the fortifications of Valletta and form the capital city's outer defences. Construction of the lines began in 1636 and they were named after the military engineer who designed them, Pietro Paolo Floriani. The Floriana Lines were modified throughout the course of the 17th and 18th centuries, and they saw use during the French blockade of 1798–1800. Today, the fortifications are still largely intact but rather dilapidated and in need of restoration.
The Fortifications of Brussels refers to the medieval city walls that surrounded Brussels, Belgium, built primarily to defend the city but also for administrative reasons. There were two stages of fortifications of Brussels: the first walls, built in the early 13th century, and the second walls, built in the late 14th century and later upgraded. In the 19th century, the second walls were torn down and replaced with the Small Ring, a series of boulevards bounding the historical city centre. Nowadays, only a few sections of each walls remain, most notably the Halle Gate.
The ramparts of Quebec City is a city wall that surrounds the western end of Old Quebec's Upper Town in Quebec City, Quebec, Canada. The ramparts date back to the 17th century, with the ramparts having undergone a succession of modifications and improvements throughout their history. The city walls extend 4.6 kilometres (2.9 mi), with the southern portions of the ramparts forming a part of the Citadelle of Quebec.
A curtain wall is a defensive wall between fortified towers or bastions of a castle, fortress, or town.
The Thiers wall was the last of the defensive walls of Paris. It was an enclosure constructed between 1841 and 1846 and was proposed by the French prime minister Adolphe Thiers but was actually implemented by his successor. The 33 kilometres (21 mi) long wall and ditch made a complete circuit around the city as it stood at the time of the July Monarchy. It was bombarded by the Prussian Army during the Franco-Prussian War, captured by government troops during the Paris Commune and refortified at the start of the First World War. However, by then it had become obsolete as a fortification and was a barrier to the expansion of the city. The area immediately outside of it, known as "the zone", had become a shanty town. The wall was demolished in the interwar period; its path today can be traced by the Boulevards of the Marshals which originally ran just behind the fortifications and by the Boulevard Périphérique which was later built just outside. A few remnants of the wall can still be seen.
A bailey or ward in a fortification is a leveled courtyard, typically enclosed by a curtain wall. In particular, a medieval type of European castle is known as a motte-and-bailey. Castles and fortifications may have more than one bailey, and the enclosure wall building material may have been at first in wood, and later transitioned to stone. Their layout depends both on the local topography and the level of fortification technology employed, ranging from simple enclosures to elaborate concentric defences. In addition to the gradual evolution of more complex fortification plans, there are also significant differences in regional traditions of military architecture regarding subdivisions into baileys.
A bridge castle is a type of castle that was built to provide military observation and security for a river crossing. In the narrower sense it refers to castles that are built directly on or next to a bridge. Sometimes, however, castles close to a bridge are referred to as bridge castles.
A Zwinger is an open kill zone area between two defensive walls that is used for defensive purposes. Zwingers were built in the post-classical and early modern periods to improve the defence of castles and town walls. The term is usually left untranslated, but is sometimes rendered as "outer courtyard", presumably referring to the subsequent role of a Zwinger as a castle's defences became redundant and it was converted into a palace or schloss; however, this belies its original purpose as a form of killing ground for the defence. The word is linked with zwingen, "to force", perhaps because the Zwinger forced an enemy to negotiate it before assaulting the main defensive line. Essenwein states that the "main purpose of this feature was so that the besieging force could not reach the actual castle wall very easily with battering rams or belfries, but had to stop at the lower, outer wall; also that two ranks of archers, behind and above one another, could fire upon the approaching enemy".
Dashtadem Fortress (Qagheni fortress) is a substantial fortress of the 5th to 19th centuries located at the southern outskirts of Dashtadem village in the Aragatsotn Province of Armenia. In a cemetery 1.7 km (1.1 mi) south of Dashtadem, lies the restored 7th-century Kristapori Vank which may be viewed in the distance from the Qagheni fortress.
Hohenfreyberg Castle, together with Eisenberg Castle directly opposite, forms a castle group in the southern Allgäu that is visible from a long way off. It is located about four kilometres north of Pfronten in the county of Ostallgäu. The late mediaeval hilltop castle was abandoned during the Thirty Years' War and set on fire. From 1995 to 2006 the former aristocratic seat was comprehensively made safe and conserved as part of a closely observed "example of renovation".
Antwerp was developed as a fortified city, but very little remains of the 10th century enceinte. Only some remains of the first city wall can be seen near the Vleeshuis museum at the corner of Bloedberg and Burchtgracht, and a replica of a burg (castle) named Steen has been partly rebuilt near the Scheldt-quais during the 19th century. Parts of the canals that protected the city between the 12th and 16th century have been covered and used as a sewage system. Both the 16th century city walls and the 19th century fortifications have been covered up by major infrastructure works during the 19th and 20th century.
The fortifications of Valletta are a series of defensive walls and other fortifications which surround Valletta, the capital city of Malta. The first fortification to be built was Fort Saint Elmo in 1552, but the fortifications of the city proper began to be built in 1566 when it was founded by Grand Master Jean de Valette. Modifications were made throughout the following centuries, with the last major addition being Fort Lascaris which was completed in 1856. Most of the fortifications remain largely intact today.
The fortifications of Birgu are a series of defensive walls and other fortifications which surround the city of Birgu, Malta. The first fortification to be built was Fort Saint Angelo in the Middle Ages, and the majority of the fortifications were built between the 16th and 18th centuries by the Order of Saint John. Most of the fortifications remain largely intact today.
The fortifications of Senglea are a series of defensive walls and other fortifications which surround the city of Senglea, Malta. The first fortification to be built was Fort Saint Michael in 1552, and the majority of the fortifications were built over the next decade when it was founded by Grand Master Claude de la Sengle. Modifications continued until the 18th century, but large parts of the fortifications were demolished between the 19th and 20th centuries. Today, all that remain of Senglea's fortifications are the seaward bastions and part of the land front.
The fortifications of Heraklion are a series of defensive walls and other fortifications which surround the city of Heraklion in Crete, Greece. The first city walls were built in the Middle Ages, but they were completely rebuilt by the Republic of Venice. The fortifications managed to withstand the second longest siege in history for 21 years, before the city fell to the Ottomans in 1669.
