Heidarieh Mosque, Qazvin
مسجد حیدریه قزوین
Although renovated by Amir Khomär-täsh (Malikshah's vizier) after the earthquake of 1119 CE, the history of construction of this edifice goes back to pre-Islam, where it was a Zoroastrian fire temple.
The building today sits in the yard of an elementary school, and functions as the school's library and auditorium.
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