Iran has one of the richest art heritages in world history and encompasses many disciplines including architecture, painting, weaving, pottery, calligraphy, metalworking and stonemasonry. There is also a very vibrant Iranian modern and contemporary art scene. Iranian art has gone through numerous phases of evolution. The unique aesthetics of Iran is evident from the Achaemenid reliefs in Persepolis to the mosaic paintings of Bishapur. The Islamic era drastically brought changes to the styles and practice of the arts, each dynasty with its own particular foci. The Qajarid era was the last stage of classical Persian art, before modernism was imported and suffused into elements of traditionalist schools of aesthetics.