#classical architecture

• Acanthus mollis — A species of large, rhizomatous, perennial herbaceous plant in the Acanthus genus, native to the Mediterranean region. It is characterized by large, glossy dark green leaves, deeply lobed, but with soft, flexible, and spineless margins and lobes, a feature directly reflected in its specific epithet. Its monumental inflorescences, shaped as long, dense spikes bearing tubular white flowers with purple hues, hold a legendary historical importance, being the exact botanical model that inspired the Corinthian capital decorations in ancient Greek and Roman architecture.
• The Acropolis — The proper name of the most famous and representative acropolis of the ancient world, situated on a flat rock dominating the city of Athens, Greece. This monumental complex of exceptional universal architectural value houses masterpieces of the Classical era (5th century BC, coordinated by Pericles and Phidias), including the Parthenon temple, the Erechtheion with its caryatids, the temple of Athena Nike, and the Propylaea.
• Acroterium — A learned technical form or direct transliteration of the Latin term acroterium; it represents the small plinth or decorative finishing element placed at key points of aclassical pediment to support statues or plant ornaments. Its structure ensures the correct weight distribution of decorative sculptures onto the building's entablature support.
• Aedicule — A small structures with a decorative or votive role, consisting of a pediment supported by two columns or pilasters, designed to house a statue, an altar niche, or a funerary urn. In Roman and Renaissance monumental architecture, the term also designates the decorative framings of windows or niches on building facades that mimic a small temple layout.
• Amphiprostyle — A type of ancient Greek or Roman temple structurally characterized by the presence of two parallel external colonnades (porticoes), one located on the main front facade (pronaos) and the other on the rear facade (posticum), while the lateral walls (cella) remain plain and completely column-free. A classic example of amphiprostyle architecture is the Temple of Athena Nike on the Acropolis.
• Amphiptere — A legendary winged serpent or mythological dragon, represented in medieval heraldry with bat or bird wings and no legs, often symbolizing secret knowledge or spiritual protection. In classical architecture, by rare extension, the term can describe a structure or building completely surrounded by lateral wings of columns or double porticoes.
• Architrave — A horizontal structural architectural element, made of stone, wood, or marble, constituting the lower part of the entablature and resting directly on the capitals of the columns or supporting pillars. In classical architectural orders (Doric, Ionic, Corinthian), the architrave has the essential role of bearing the weight of the upper structures (frieze and cornice) and distributing it evenly to the vertical support elements.
• Archivolt — A decorative element or prominent ornamental molding that frames and emphasizes the exterior face of an arch or a vault along its curvature. In classical, Romanesque, and Gothic architecture, the archivolt is often composed of several artistically carved concentric bands, serving the visual role of highlighting the opening of a portal or a monumental window.
• Araeostyle — A type of colonnade or ancient architectural style where the distance between columns (intercolumniation) is very wide, structurally exceeding four column diameters. In a classical-constructive sense theorized by Vitruvius, the araeostyle required the use of wooden tie-beams (architraves) instead of stone ones to prevent structural collapse due to the wide span, being characteristic of temples of the Tuscan order.
• Archivolt — A decorative element or molding framing the exterior face of an arch or a triumphal arch; an ornamental molding placed above an opening (door, window) that follows the contour of the arch, specific to Romanesque, Gothic, and Baroque architectural styles.