The Iranian city of Nain has long been one of the centres for the production of famous Persian Oriental Rugs. These rugs are regarded as some of the finest quality rugs made using fine wool and silk is often used in outlines to give a more luxurious look and to enhance the decoration, sometimes with a central medallion or otherwise with shah abs floral design all over and contrasting border. These designs are generally taken from the beautiful blue and white tiled mosques.