Ganj-e Badavard (Middle Persian: Ganǰ-i Badaward, meaning "the treasure brought by the wind") was the name of one of the legendary eight treasures of the Sasanian king Khosrau II (r. 591-628). According to the Shahnameh, it was also the treasure of the legendary Kayanid king Kay Khosrow.
References
Ganj-e Badavard Wikipedia(Text) CC BY-SA