Keystone (architecture)A keystone (or capstone) is the wedge-shaped stone at the apex of a masonry arch or typically round-shaped one at the apex of a vault. In both cases it is the final piece placed during construction and locks all the stones into position, allowing the arch or vault to bear weight. In arches and vaults (such as quasi-domes) keystones are often enlarged beyond the structural requirements and decorated. A variant in domes and crowning vaults is a lantern.
Flying buttressThe flying buttress (arc-boutant, arch buttress) is a specific form of buttress composed of an arch that extends from the upper portion of a wall to a pier of great mass, in order to convey to the ground the lateral forces that push a wall outwards, which are forces that arise from vaulted ceilings of stone and from wind-loading on roofs. The namesake and defining feature of a flying buttress is that it is not in contact with the wall at ground level, unlike a traditional buttress, and transmits the lateral forces across the span of intervening space between the wall and the pier.
ClerestoryIn architecture, a clerestory (ˈklɪərstɔːri ; clear storey, also clearstory, clearstorey, or overstorey) is a high section of wall that contains windows above eye level. Its purpose is to admit light, fresh air, or both. Historically, clerestory denoted an upper level of a Roman basilica or of the nave of a Romanesque or Gothic church, the walls of which rise above the rooflines of the lower aisles and are pierced with windows. Similar structures have been used in transportation vehicles to provide additional lighting, ventilation, or headroom.
Vault (architecture)In architecture, a vault (French voûte, from Italian volta) is a self-supporting arched form, usually of stone or brick, serving to cover a space with a ceiling or roof. As in building an arch, a temporary support is needed while rings of voussoirs are constructed and the rings placed in position. Until the topmost voussoir, the keystone, is positioned, the vault is not self-supporting. Where timber is easily obtained, this temporary support is provided by centering consisting of a framed truss with a semicircular or segmental head, which supports the voussoirs until the ring of the whole arch is completed.
Lincoln CathedralLincoln Cathedral, Lincoln Minster, or the Cathedral Church of the Blessed Virgin Mary of Lincoln and sometimes St Mary's Cathedral, in Lincoln, Lincolnshire, England. It is a Grade I listed cathedral and is the seat of the Anglican Bishop of Lincoln. Construction commenced in 1072 and continued in several phases throughout the High Middle Ages. Like many of the medieval cathedrals of England, it was built in the Early Gothic style. Lincoln Cathedral became the tallest building in the world upon the completion of its high central spire in 1311.
Gloucester CathedralGloucester Cathedral, formally the Cathedral Church of St Peter and the Holy and Indivisible Trinity, in Gloucester, England, stands in the north of the city near the River Severn. It originated with the establishment of a minster, Gloucester Abbey, dedicated to Saint Peter and founded by Osric, King of the Hwicce, in around 679. The subsequent history of the church is complex; Osric's foundation came under the control of the Benedictine Order at the beginning of the 11th century and in around 1058, Ealdred, Bishop of Worcester, established a new abbey "a little further from the place where it had stood".
Gothic cathedrals and churchesGothic cathedrals and churches are religious buildings created in Europe between the mid-12th century and the beginning of the 16th century. The cathedrals are notable particularly for their great height and their extensive use of stained glass to fill the interiors with light. They were the tallest and largest buildings of their time and the most prominent examples of Gothic architecture. The appearance of the Gothic cathedral was not only a revolution in architecture; it also introduced new forms in decoration, sculpture, and art.
Norman architectureThe term Norman architecture is used to categorise styles of Romanesque architecture developed by the Normans in the various lands under their dominion or influence in the 11th and 12th centuries. In particular the term is traditionally used for English Romanesque architecture. The Normans introduced large numbers of castles and fortifications including Norman keeps, and at the same time monasteries, abbeys, churches and cathedrals, in a style characterised by the usual Romanesque rounded arches (particularly over windows and doorways) and especially massive proportions compared to other regional variations of the style.
Chartres CathedralChartres Cathedral, also known as the Cathedral of Our Lady of Chartres (Cathédrale Notre-Dame de Chartres), is a Catholic church in Chartres, France, about southwest of Paris, and is the seat of the Bishop of Chartres. Mostly constructed between 1194 and 1220, it stands on the site of at least five cathedrals that have occupied the site since the Diocese of Chartres was formed as an episcopal see in the 4th century.
AisleAn aisle is, in general, a space for walking with rows of non-walking spaces on both sides. Aisles with seating on both sides can be seen in airplanes, certain types of buildings, such as churches, cathedrals, synagogues, meeting halls, parliaments and legislatures, courtrooms, theatres, and in certain types of passenger vehicles. Their floors may be flat or, as in theatres, stepped upwards from a stage. Aisles can also be seen in shops, warehouses, and factories, where rather than seats, they have shelving to either side.
