The Imam Hussein Mosque (Arabic: مسجد الإمام ٱلحُسين‎) or Jame Sayyidna Husayn (Arabic: جامِع سيّدنا ٱلحُسين‎) is a mosque and mausoleum of Husayn ibn Ali, originally built in 1154, and then later reconstructed in 1874. The mosque is located in Cairo, Egypt, near the Khan El-Khalili bazaar, near-by the famous Al Azhar Mosque, in an area known as Al-Hussain. It is considered to be one of the holiest Islamic sites in Egypt. Some Shia Muslims believe that Husayn's head (ra's mubarak) is buried on the grounds of the mosque where a mausoleum is located today and considered to be what is left of the Fatimid architecture in the building.