The Grand Mosque is the oldest in Chaouen, founded alongside the town itself in 1471. Non-Muslims cannot enter, but the exterior — and especially the distinctive octagonal minaret — is the visual anchor of the medina. From the café terraces of Plaza Uta el-Hammam, you can watch the minaret change colour through the day, from pale stone in morning light to deep amber at dusk.
The call to prayer from this mosque sets the rhythm of life in the medina. It comes five times a day, and the sound carries across the entire blue quarter. Even visitors who have heard many mosque calls tend to find Chaouen's version particularly affecting — the scale of the town means it feels intimate rather than monumental.