The Kheir Abad complex is one of the most important historical sites in Gachsaran
This complex consists of a school, fire temple, castles, and water reservoirs.
In addition to this, a small castle made of stone exists on a mountain, close to which is one of the ancient temples of Anahita. The Kheir Abad ancient vicinity is related to the Sassanid period and reveals the ancient civilization of people of that age.
The Kheir Abad comprises of a complex of villages surrounding the Shirin River. On both sides of this river, traces of buildings of the Sassanide period can be observed.
