Imamzadeh Hossein - Credit: Wikimedia Commons
The Imamzadeh Hossein (also Emamzadeh-ye Hossein, Persian: مسجد جامع عتيق قزوین) is the grave mosque of Imamazadeh Husayn, son of the 8th Imam Ali al-Rida ("Hazrat-e Reza") in Qazvin, Iran that the Safavids - Shah Tahmasp I built in the mid-16th century as a pilgrimage center. Read more on Wikipedia
Source: en.wikipedia.org