Gonbad-e Qabus

 Iran (Islamic Republic of)



The 53-metre high tomb built in 1006 A.D. for Qabus Ibn Voshmgir near the ruins of the ancient city of Jorjan on the Gorgan River in northeast Iran, bears testimony to the cultural exchange between Central Asian nomads and the ancient civilization of Iran. The tower is the only remaining evidence of Jorjan, a former centre of arts and science that was destroyed during the Mongols’ invasion in the 14th and 15th centuries. It is an outstanding and technologically innovative example of Islamic architecture that influenced sacral building in Iran, Anatolia and Central Asia. Built of unglazed fired bricks, the monument’s intricate geometric forms constitute a tapering cylinder with a diameter of 17 to 15.5 metres, topped by a conical brick roof. It illustrates the development  of mathematics and science in the Muslim world at the turn of the first millennium A.D.

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