antefix - carved ornament at the eaves of a tile roof concealing the joints between tiles

crocket - an architectural ornament of curved foliage used at the edge of a spire or gable

decoration, ornament, ornamentation - something used to beautify

dogtooth - a carved pyramidal ornament; used in 13th century England

foliage, foliation - (architecture) leaf-like architectural ornament

Greek fret, Greek key, key pattern, fret - an ornamental pattern consisting of repeated vertical and horizonal lines (often in relief); "there was a simple fret at the top of the walls"

frieze - an architectural ornament consisting of a horizontal sculptured band between the architrave and the cornice

guilloche - an architectural decoration formed by two intersecting wavy bands

trefoil - an architectural ornament in the form of three arcs arranged in a circle

architecture - the discipline dealing with the principles of design and construction and ornamentation of fine buildings; "architecture and eloquence are mixed arts whose end is sometimes beauty and sometimes use"