Heidarieh Mosque - Credit: Wikimedia Commons
Heydarieh Mosque () is a building in the city of Qazvin in Iran. 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. Read more on Wikipedia
Source: en.wikipedia.org