Hassan II mosque is an architectural masterpiece and well worth a visit. Located on reclaimed land, the world's third largest mosque is surrounded on three side by ocean. It is huge and can hold up to 25,000 worshipers, has a retractable roof and is built from predominantly local products - marble, granite, and various woods. Inside are splendid examples of wood carving, zellij (tiled mosaics) and stucco moulding.
Although large, it is not commonly frequented by locals as they often resent the forced contributions that led to its construction.
The exterior can be visited at any time and guided tours of the interior are also available. They cost 120 Dh for adults and occur at 9am, 10am, 11am and 2pm Saturday to Thursday. Tours are run in a range of languages including English and French. Visitors should be respectfully dressed but women do not have to cover their heads. Shoes will need to be removed before entry. Visitors are free to photographs both the interior and exterior of the mosque.
The mosque is a 20-minute walk from Casa Port railway station, or alternatively take a petit taxi.