Acroterion
Decorative pedestal for an ornament or statue placed atop the pediment.
Cartouche
Originally used by the Egyiptians as an emblem or seal, they were also decorative element, framed oval surrounded with scrolls over an entrance, this is known as a Cartouche in Architecture. The word 'cartouche' comes from the French language, where it means something similar to a scroll of paper.
Quoins
A quoin is an angle at the outside corner of a building. These cornerstones are both decorative and structural.
Cornice
The decorated projection at the top of a wall provided to protect the wall face or to ornament and finish the eaves.
The term is used as well for any projecting element that crowns an architectural feature, such as a doorway.
Dentilled Cornice
Small block used as a repeating ornament in the bedmould of a cornice. Dentils are found in ancient Greek and Roman architecture
Columns
There are five orders of ancient architecture: Tuscan, Doric, Ionic, Composite and Corinthian. See Nicholson’s ‘New Practical Builder’, c1824
Pediment
Triangular gable forming the end of the roof slope over a portico (the area, with a roof supported by columns, leading to the entrance of a building); or a similar form used decoratively over a doorway or window.
Frieze
Is above the architrave and below the cornice (in a position that could be quite difficult to view). The term also refers to any long, narrow, horizontal panel or band used for decorative purposes like on the exterior walls of buildings.
Capital
Crowning member of a column, pier, anta, pilaster, or other columnar form, providing a structural support for the horizontal member (entablature) or arch above. In the Classical styles, the capital is the architectural member that most readily distinguishes the order.
Parapet
A dwarf wall or heavy railing around the edge of a roof, balcony, terrace, or stairway designed either to prevent those behind it from falling over or to shelter them from attack from the outside
Orial Window
A bay window which protrudes from the main wall of a building but does not reach to the ground.
Final
Decorative element to emphasise the aped of a dome, spire, tower, roof or gable.
Rustication
Is a type of masonry treatment where block making a wall have exaggerated joints.