Grossi was accompanied by the head of the Atomic Energy Organization of Iran (AEOI) Mohammad Eslami on the Monday night tour.
The Safavid-era masterpiece spans 133 meters in length and 12 meters in width and stands as one of the region’s most distinguished architectural marvels.
The IAEA director general arrived in Tehran on Monday morning to hold talks with Iranian officials and take part in Iran’s first international conference on nuclear sciences and technologies in Isfahan.
