The Ben Youssef 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.
Closed to non-muslims.
Wikipedia https://en.wikipedia.org/wiki/Ben_Youssef_Mosque
Address (Unnamed Road), Marrakech 40000, Morocco
Coordinates 31°37'55.326" N -7°59'13.128" E