The document summarizes the design elements of the Nasir al-Mulk Mosque located in Shiraz, Iran. It was built between 1876 and 1888 in the Iranian Qajar architectural style. The document outlines the key lines, shapes, forms, textures, and decorative elements used in the mosque's interior design, including arched entrances, muqarnas vaulting, arabesque patterns, stained glass windows, and a central courtyard with water. The rectangular layout and use of geometry throughout is said to produce a feeling of order and control over the space.