An architrave is a horizontal beam that rests on top of columns or pillars, serving as a key structural element in classical architecture. It is the lowest part of the entablature, which also includes the frieze and cornice. Architraves can be found in various styles, often adorned with decorative elements, and are typically made from materials like wood, stone, or plaster. In modern architecture, architraves are also used as decorative moldings around doors and windows. These moldings enhance the aesthetic appeal of a room while providing a finished look. They can be simple or ornate, depending on the design style, and are often painted or stained to match the surrounding decor.