A plenty of extraordinary mosques were made or completed during Safavid dynasty and without a doubt, each of these mosques just like a museum exhibits tile works, stucco arts and Quranic inscriptions. Hakim Mosque is one of them with four Iwans. Each Iwan is unique in decorations and tile works and, the corridors have their own charming ornaments. This mosque was constructed upon the order of Shah Abbas II’s Physician, Hakim Mohammad Davoud. It is considered as a kind of mosque without minarets and domes. It has three main entrances. The eastern entrance with two podiums on both sides are decorated with tile works, inscriptions with Persian poetry, Muqarnas and delicate arches. The western entrance is simple and it is decorated with ornamental stuccos. Finally, the northern entrance with a verity of tile and brick works and two podiums in both side has a small Iwan with beautiful designs above the entrance. Shabestan is an underground space in traditional mosques. Hakim Mosque has four Shabestans and Mihrabs, which the main Shabestan is located behind the south Iwan. Another Shabestan, known as Zemestani (winter), is located on the west side of the mosque and has two sections for men and women. There is a small pool on the northeast of the mosque and it is surrounded by chambers. Other features of this mosque are two Sundials, one on the northwest corner of the mosque and the other on the northwest Iwan. The calligraphy works of this mosques are related to Mohammad Reza Emami in the 17th century. Hakim Mosque was registered as national heritage in 1934.