Marrakech's tallest and most recognisable landmark, its minaret visible from most of the city and used historically as a model for other Moroccan and Andalusian towers. The gardens around the mosque are a pleasant, shaded place to pause between the square and the newer parts of the city.
Like most active mosques in Morocco, the interior is not open to non-Muslim visitors, but the exterior and gardens are freely accessible at any time.
Photo: Jorge Franganillo / Wikimedia Commons (CC BY 2.0)