Buttress in the context of "Mission San Gabriel Arcángel"

A barrel vault, also known as a tunnel vault, wagon vault or wagonhead vault, is an architectural element formed by the extrusion of a single curve (or pair of curves, in the case of a pointed barrel vault) along a given distance. The curves are typically circular in shape, lending a semi-cylindrical appearance to the total design. The barrel vault is the simplest form of a vault: effectively a series of arches placed side by side (i.e., one after another). It is a form of barrel roof.

As with all arch-based constructions, there is an outward thrust generated against the walls underneath a barrel vault. There are several mechanisms for absorbing this thrust. One is to make the walls exceedingly thick and strong – this is a primitive and sometimes unacceptable method. A more elegant method is to build two or more vaults parallel to each other; the forces of their outward thrusts will thus negate each other. This method was most often used in construction of churches, where several vaulted naves ran parallel down the length of the building. However, the outer walls of the outermost vault would still have to be quite strong or reinforced by buttressing. The third and most elegant mechanism to resist the lateral thrust was to create an intersection of two barrel vaults at right angles, thus forming a groin vault.

In architecture, a pilaster is both a load-bearing section of thickened wall or column integrated into a wall, and a purely decorative element in classical architecture which gives the appearance of a supporting column and articulates an extent of wall. As an ornament it consists of a flat surface raised from the main wall surface, usually treated as though it were a column, with a capital at the top, plinth (base) at the bottom, and the various other column elements. In contrast to a Classical pilaster, an engaged column or buttress can support the structure of a wall and roof above.

English Gothic is an architectural style that flourished from the late 12th until the mid-17th century. The style was most prominently used in the construction of cathedrals and churches. Gothic architecture's defining features are pointed arches, rib vaults, buttresses, and extensive use of stained glass. Combined, these features allowed the creation of buildings of unprecedented height and grandeur, filled with light from large stained glass windows. Important examples include Westminster Abbey, Canterbury Cathedral and Salisbury Cathedral. The Gothic style endured in England much longer than in Continental Europe.

The Gothic style was introduced from France, where the various elements had first been used together within a single building at the choir of the Abbey of Saint-Denis north of Paris, completed in 1144. The earliest large-scale applications of Gothic architecture in England were Canterbury Cathedral and Westminster Abbey. Many features of Gothic architecture had evolved naturally from Romanesque architecture (often known in England as Norman architecture). The first cathedral in England to be both planned and built entirely in the Gothic style was Wells Cathedral, begun in 1175. Other features were imported from the Ile-de-France, where the first French Gothic cathedral, Sens Cathedral, had been built (1135–64). After a fire destroyed the choir of Canterbury Cathedral in 1174, the French architect William of Sens rebuilt the choir in the new Gothic style between 1175 and 1180. The transition can also be seen at Durham Cathedral, a Norman building which was remodelled with the earliest surviving rib vault. Besides cathedrals, monasteries, and parish churches, the style was used for many secular buildings, including university buildings, palaces, great houses, and almshouses and guildhalls.

The flying buttress (arc-boutant, arch buttress) is a specific form of buttress composed of a ramping arch that extends from the upper portion of a wall to a pier of great mass, 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. To provide lateral support, flying-buttress systems are composed of two parts: (i) a massive pier, a vertical block of masonry situated away from the building wall, and (ii) an arch that bridges the span between the pier and the wall – either a segmental arch or a quadrant arch – the flyer of the flying buttress.

The Villa Farnese, also known as Villa Caprarola, is a pentagonal mansion in the town of Caprarola in the province of Viterbo, Northern Lazio, Italy, approximately 50 kilometres (31 mi) north-west of Rome, originally commissioned and owned by the House of Farnese. A property of the Republic of Italy, Villa Farnese is run by the Polo Museale del Lazio. This villa is not to be confused with two similarly-named properties of the family, the Palazzo Farnese and the Villa Farnesina, both in Rome.

The Villa Farnese is situated directly above the town of Caprarola and dominates its surroundings. It is a massive Renaissance and Mannerist construction, opening to the Monte Cimini, a range of densely wooded volcanic hills. It is built on a five-sided plan in reddish gold stone; buttresses support the upper floors. As a centerpiece of the vast Farnese holdings, Caprarola was always an expression of Farnese power, rather than a villa in the more usual agricultural or pleasure senses.

Saint Augustine Parish Church, commonly known as Paoay Church, is a Roman Catholic church in the municipality of Paoay, Ilocos Norte in the Philippines. It is under the ecclesiastical jurisdiction of the Diocese of Laoag. Completed in 1710, the church is famous for its distinctive architecture, a highlight of which are the enormous buttresses on the sides and the back of the building.

It is declared as a National Cultural Treasure by the Philippine government in 1973 and a UNESCO World Heritage Site under the collective group of Baroque Churches of the Philippines in 1993.

A flèche (French: [flɛʃ] ; French for 'arrow') is the name given to spires in Gothic architecture. In French, the word is applied to any spire, but in English it has the technical meaning of a spirelet or spike on the rooftop of a building. In particular, the spirelets often were built atop the crossings of major churches in mediaeval French Gothic architecture are called flèches.

On the ridge of the roof on top of the crossing (the intersection of the nave and the transepts) of a church, flèches were typically light, delicate, timber-framed constructions with a metallic sheath of lead or copper. They are often richly decorated with architectural and sculptural embellishments: tracery, crockets, and miniature buttresses serve to adorn the flèche.

A pinnacle is an architectural element originally forming the cap or crown of a buttress or small turret, but afterwards used on parapets at the corners of towers and in many other situations. The pinnacle looks like a small spire. It was mainly used in Gothic architecture.