An entablature is a horizontal structure found in classical architecture, positioned above the columns and below the roof. It typically consists of three main parts: the architrave, which is the lowest section, the frieze in the middle, and the cornice at the top. This design serves both decorative and structural purposes, providing support while enhancing the aesthetic appeal of buildings. Entablatures are commonly seen in styles such as Doric, Ionic, and Corinthian, which are the three main orders of classical architecture. Each style has distinct characteristics, influencing the design and ornamentation of the entablature. These elements contribute to the overall harmony and proportion of the architectural composition.