The caravanserai at Gaz, situated some 20 kilometers north of Isfahan, is one of numerous similar structures were built along trade routes in the first half of the seventeenth century under the Safavid monarch Shah Abbas.
It is rectangular in plan (measuring 96 by 83 meters) with round towers at the corners. The exterior is articulated with arched niches. A projected portal provides access to the internal courtyard, which follows the typical four-iwan plan.
Sources:
Hunarfar, Lotfollah. 1965. Gangine-ye Asar-e Tarikhi-ye Isfahan. Isfahan: Saghafi, 192-194.