This complex is located in the south-eastern part of the town, in an area which locals call Kohnagala. The walls of an ancient and medieval town have been unearthed here. The Imamzadeh tomb is typical of the Safavid architecture of the sixteenth and seventeenth centuries. It used to be an area where prominent sheikhs were buried and where important tombs were located. The location of the necropolis has changed over time and moved to a nearby hill. Visitors perform prayers at the tomb, which was fully renovated in 1997. This oldest place of worship of the town is also called the tomb of Nuh (Noah). It was used as a pharmacy between 1984 and 1987. Seyyid Sultan Safa, a grand-child of the eighth Shiite imam Reza, has been buried here