Maybe the sanctity of number 40 is the reason that the name of many historical monuments in Iran start with 40. Perhaps the reason for naming Chehel Dokhtaran Minaret in Isfahan is the same. Chehel Dokhtaran Minaret (40 girls) dates back to Seljuk dynasty, and some believe that it is the fifth oldest minaret in Iran. This is a solitary structure, which means it is not related to a mosque or any other buildings. All over the minarets are decorated with bricks in shape of stars, and there is a Kufic inscription on the top of the minarets and shows the time of its construction. These inscriptions are so valuable that Chehel Dokhtaran Minaret has become one of the buildings that show the identity of Isfahan. This minaret is also called Garland, an English protestant missionary who lived in the vicinity of the minarets. The height of the minaret was 24 meters at first, but its upper part has been ruined and now it is 21 meters.