Tarikhaneh Mosque

The Tarikhaneh Temple (Persian: پرستشگاه تاریخانه), also called the Tarikhaneh Mosque (Persian: مسجد تاریخانه), is a Sassanid-era monument located on the southern limit of the present day city of Damghan, Iran.

This temple was in the pre-Islamic place of worship of the Zoroastrian and used it as a fire or temple of fire, and is about 2,300 years old. This structure was initially used as a Zoroastrian Fire Temple during the Sassanid period, however, after the fall of the Sassanid Empire it was converted into a mosque in the 8th century. The monument is, thus, known as the oldest mosque in Iran.