Mosque of Three Doors - Credit: Wikimedia Commons
The Mosque of the Three Doors (; ) or Mosque of Muhammad ibn Khairun () is a mosque In the city of Kairouan, Tunisia. Commissioned in 866, during the Aghlabid dynasty period, by Muhammad ibn Khairun, a private local patron. The mosque is notable for being one of the earliest occurrences of a richly decorated external façade in Islamic architecture. The mosque was modified in later periods, notably with the addition of a minaret in 1440, during the Hafsid period. Read more on Wikipedia
Source: en.wikipedia.org