Ben Youssef Mosque - Credit: Wikimedia Commons
The Ben Youssef Mosque (also known by its English spelling as the "Ibn Yusuf Mosque"), is a mosque in the Medina quarter of Marrakesh, Morocco, named after the Almoravid emir Ali ibn Yusuf. It is arguably the oldest and most important mosque in Marrakesh. Read more on Wikipedia
Source: en.wikipedia.org