Like many other cities throughout Iran, stucco was the most widespread method of ornamentation in Persian houses. One reason was the relatively cheap price of the materials used (like gypsum for example) that don't require a high temperature to be transformed into plaster. This is an important consideration in places like central Iran where wood is relatively scarce. Another reason is that it is easily shaped, molded, or carved. Thanks to stucco, a wall of crudely fashioned stone blocks or raw brick, gives an impression of great luxury. Thus stucco owes its luxurious appearance to the skill of the craftsman. And with a tradition of stucco technique going back to pre-Islamic Iran, this is an art fully mastered by Persian craftsmen, as seen here.