A gate or gateway is a point of entry to or from a space enclosed by walls. The word derived from old Norse "gat" meaning road or path; But other terms include yett and port. The concept originally referred to the gap or hole in the wall or fence, rather than a barrier which closed it. Gates may prevent or control the entry or exit of individuals, or they may be merely decorative. The moving part or parts of a gateway may be considered "doors", as they are fixed at one side whilst opening and closing like one.
A castle is a type of fortified structure built during the Middle Ages predominantly by the nobility or royalty and by military orders. Scholars usually consider a castle to be the private fortified residence of a lord or noble. This is distinct from a mansion, palace and villa, whose main purpose was exclusively for pleasance and are not primarily fortresses but may be fortified. Use of the term has varied over time and, sometimes, has also been applied to structures such as hill forts and 19th- and 20th-century homes built to resemble castles. Over the Middle Ages, when genuine castles were built, they took on a great many forms with many different features, although some, such as curtain walls, arrowslits, and portcullises, were commonplace.
A defensive wall is a fortification usually used to protect a city, town or other settlement from potential aggressors. The walls can range from simple palisades or earthworks to extensive military fortifications with towers, bastions and gates for access to the city. From ancient to modern times, they were used to enclose settlements. Generally, these are referred to as city walls or town walls, although there were also walls, such as the Great Wall of China, Walls of Benin, Hadrian's Wall, Anastasian Wall, and the Atlantic Wall, which extended far beyond the borders of a city and were used to enclose regions or mark territorial boundaries. In mountainous terrain, defensive walls such as letzis were used in combination with castles to seal valleys from potential attack. Beyond their defensive utility, many walls also had important symbolic functions – representing the status and independence of the communities they embraced.
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.
The Kyiv Fortress or Kiev Fortress is a historical and architectural monument complex of Russian fortifications in Kyiv, Ukraine built from the 17th through 19th centuries. Construction began after the 1654 Council in Pereiaslav, on the site of the already existing fortified monastery of Kyiv Pechersk Lavra. Located on the hills of the high right bank of the Dnieper, bounded on the north by the Klovsky ravine, on the south and west – by the slopes of the Lybid River valley.
A gatehouse is a type of fortified gateway, an entry control point building, enclosing or accompanying a gateway for a town, religious house, castle, manor house, or other fortification building of importance. Gatehouses are typically the most heavily armed section of a fortification, to compensate for being structurally the weakest and the most probable attack point by an enemy. There are numerous surviving examples in France, Austria, Germany, England and Japan.
The Alcazaba is a palatial fortification in Málaga, Spain, built during the period of Muslim-ruled Al-Andalus. The current complex was begun in the 11th century and was modified or rebuilt multiple times up to the 14th century. It is one of the best-preserved alcazabas in Spain. The Alcazaba is also connected by a walled corridor to the higher Castle of Gibralfaro, and adjacent to the entrance of the Alcazaba are remnants of a Roman theatre dating to the 1st century AD.
The Château de Boulogne-sur-Mer is a castle in the French seaport of Boulogne-sur-Mer, in the Pas-de-Calais département. It houses the Boulogne museum.
Bergfried is a tall tower that is typically found in castles of the Middle Ages in German-speaking countries and in countries under German influence. Friar describes it as a "free-standing, fighting-tower". Its defensive function is to some extent similar to that of a keep in English or French castles. However the characteristic difference between a bergfried and a keep is that a bergfried was typically not designed for permanent habitation.
Sigulda Medieval Castle ruins are located on the edge of the Gauja valley in Latvia. The original castle was built in 1207 as a castellum type fortress, later rebuilt into a convent type building. The residence of the Land Marshal of the Livonian Order since 1432.
Heisdorf Castle located in the village of Heisdorf in central Luxembourg was built by Baron Lippmann in the late 19th century. Surrounded by a large park, it was designed by the Belgian architect Charles Thirion. In 1916, the Sisters of the Christian Doctrine acquired the property as a convalescent home for their community. In 1982, it was opened as an old people's home under the name of Maison de retraite Marie-Consolatrice. In 2007, a new wing was added to the building by the architecture firm Hermann, Valentiny and Partners providing improved facilities for its senior citizens.
The que is a freestanding, ceremonial gate tower in traditional Chinese architecture. First developed in the Zhou dynasty, que towers were used to form ceremonial gateways to tombs, palaces and temples throughout pre-modern China down to the Qing dynasty (1644–1912). The use of que gateways reached its peak during the Han dynasty, and today they can often be seen as a component of an architectural ensemble at the graves of high officials during China's Han dynasty. There are also some que found in front of temples. Richly decorated, they are among the most valuable surviving relics of the sculpture and architecture of that period.
Conwy's town walls are a medieval defensive structure around the town of Conwy in Wales. The walls were constructed between 1283 and 1287 after the foundation of Conwy by Edward I, and were designed to form an integrated system of defence alongside Conwy Castle. The walls are 1.3 km (0.81 mi) long and include 21 towers and three gatehouses. The project was completed using large quantities of labourers brought in from England; the cost of building the castle and walls together came to around £15,000, a huge sum for the period. The walls were slightly damaged during the rebellion of Owain Glyndŵr in 1401, but political changes in the 16th century reduced the need to maintain such defences around the town. The fortifications were treated sympathetically during the development of the road and railway systems in Conwy during the 19th century and survived largely intact into the modern period. Today the walls form part of the UNESCO World Heritage Site administered by Cadw. Historians Oliver Creighton and Robert Higham describe the defences as "one of the most impressive walled circuits" in Europe.
An elevated entrance is a type of entrance, common in the design of medieval castles, that is not accessible from ground level, but lies at the level of an upper storey. The elevated entrance is the lowest and frequently the only way of entering a fortified building or residence. In the case of circular towers, a large opening in the main wall at ground level was a potential weakness and experts on castle design have argued that the elevated entrance served a structural as well as defensive purpose.
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".
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".
Regensberg Castle is a hill castle which was built about the mid-13th century AD by the House of Regensberg in the Swiss municipality of Regensberg in the Canton of Zürich.
The Fortifications of Fez comprise a complex circuit of ramparts and gates surrounding Fes el-Bali and Fes el-Jdid, two urban agglomerations that compose the old "medina" of Fes, Morocco. They also include a number of kasbahs (citadels) and forts which were built both to protect and to control the city. These fortifications have been built up over many centuries and the extensive remnants today date from many different periods.
Bab Dekkakin or Bab Dekakene is a fortified and ceremonial gate in Fes, Morocco. The gate is situated between the Old Mechouar and the New Mechouar on the northern edge of Fes el-Jdid.
Gara Boyuk Khanim Castle is an 18th century palace-castle located on a hill in the southeastern part of the town of Shusha (Shushi) in the Karabakh region of Azerbaijan. It is composed of four towers in a square plan. It is one of the two castles of Shusha that have survived to present day.
