Chehel Dokhtaran minaret

Chehel Dokhtaran minaret is a historical minaret in Isfahan, Iran. It is located in the Jouybareh district of Isfahan. According to the kufic inscription on the minaret, it is built in 1112. It is the fifth oldest minaret in Iran, which has an inscription. There's a big window on the minaret, which faces the qibla. This feature does not exist in other minarets of Isfahan. There is a spiral staircase in the minaret, which leads to the top of it. This minaret is 40 meters high. Originally, the minaret was higher, but in the course of time its height has been decreased. The minaret towers over the city quarter and can be seen from the far distance, but it is difficult to reach it through the mazes of winding alleys and narrow streets.

Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).