Agha Bozorg Mosque is a historical mosque in Kashan. The mosque was built in the late 18th century by master-mimar Ustad Haj Sa’ban-ali. The mosque and theological school (madrasah) is located in the center of the city. Agha Bozorgh Mosque was constructed for prayers, preaching and teaching sessions held by Molla Mahdi Naraghi II, known as Agha Bozorgh. The courtyard of the mosque has another courtyard with a pool and a garden inside it. The two doors of the mosque have 6,236 nails in them to match the number of verses in the Quran. The mosque has been described as “the finest Islamic complex in Kashan and one of the best of the mid-19th century”. Noted for its symmetrical design, it consists of two large Ivans, one in front of the mihrab and the other by the entrance. The Ivan in front of mihrab has two minarets with a brick dome. The complex has beautiful Thuluth and Nastaleeq inscriptions, stucco decorations, paintings, moqarnas and tilework.