The Grande Mosquée (Great Mosque) of Taza is the most important historic monument in the city and one of the oldest surviving Almohad mosques in Morocco. Founded in 1135 by the Almohad caliph Abd al-Mu'min, it was expanded and embellished by subsequent dynasties — the Merinids added important decorative elements in the 13th and 14th centuries. It stands at the heart of the medina, near the central souk, and its minaret and dome are the dominant features of the old town's skyline when viewed from below.
The mosque is not accessible to non-Muslims, which applies to most of the major religious monuments in Taza. However, the exterior, courtyard glimpses through the entrance portal, and the minaret are worth observing from outside. The surrounding medina streets near the mosque — the souk el-kissariat and the lanes of the traditional artisan quarter — are the most active part of Taza-Haut and worth exploring regardless of access to the mosque itself.