One of the important and attractive structures of Kashan is its ancient and large bazaar. Its primary structure dates to the 7th century AH.

This bazaar is a relic of the Safavid era and prolongs from the Qasariyeh facade to the Jame' Mosque. This bazaar is also known as the 'Bazaar-e-Nezamiyeh' or 'Nezam-ol-Molk'.

This square is from the period of Shah Abbas I, and has a length of 500 m. from north to south, and its width being approximately 165 m.

The said premises is located in Kashan and was constructed during the years 1292-1310 AH. by 'Haj Seyed Jaffar Natanzi' a merchant who conducted business in Borujerd and Kashan as well.

This ancient structure has four porches and a beautiful dome with two tile worked minarets. Its courtyard and chambers that are on a lower level display an attractive aspect.