A Greek ornament on roof-corners of temples. From Greek 'Akro', ' highest' . In classical furniture a figure or ornament positioned at the top corners.

An ornamental projection at the corner or peak of a roof; or the base that supports the ornament.

An acroterion or acroterium is an architectural ornament placed on a flat base called the acroter or plinth, and mounted at the apex of the pediment of a building in the Classical style. It may also be placed at the outer angles of the pediment; such acroteria are referred to as acroteria angularia. The acroterion may take a wide variety of forms, such as a statue, tripod, disc, urn, palmette or some other sculpted feature.