File:Frontons. A pediment is an element in classical, neoclassical and baroque architecture, and derivatives therefrom, consisting of a gable, originally of a triangular shape, placed above the horizontal structure of the entablature, typically supported by columns. The tympanum, or triangular area within the pediment, was often decorated with relief sculpture depicting scenes from Greek and Roman mythology or allegorical figures.
1. The Ruins of this Ancient Roman Library The library was completed in 135 AD and was built to house 12,000 scrolls and to honor the Roman Senator Tiberius Julius Celsus Polemaeanus, whose tomb is below the entrance. Photos found via Travel Junkies and Flickr 1, 2, 3 2. This Bui