Hassan II Mosque

The Hassan II Mosque dominates the Casablanca waterfront with an audacity that is hard to prepare for. Begun in 1986 and completed in 1993, it is one of the largest religious structures in the world, capable of hosting 25,000 worshippers in its main prayer hall, and its 210-metre minaret is the tallest religious minaret on earth, visible from far out at sea.

What makes the building remarkable is that it was constructed almost entirely by hand using traditional Moroccan materials and techniques. The interiors are carved plaster, the ceilings are painted cedar wood, and the floors are marble. The minaret's tip is clad in green copper. The mosque also contains Morocco's first automated underfloor heating system, so worshippers remove their shoes and pray on warm marble in winter.

The interiors are covered in hand-carved plaster in geometric and arabesque patterns, with every small piece of each mosaic cut and placed individually by craftsmen working from Moroccan design traditions. The main prayer hall's retractable glass floor can be opened to allow worshippers to pray directly above the sea when the ocean is visible through the glass.

Construction employed thousands of skilled artisans across Morocco. All plaster ornamentation is hand-carved using techniques that have been passed down through craft generations. The building budget was reportedly around 800 million US dollars, much of it raised through voluntary contributions from Moroccan citizens.

The Hassan II Mosque is one of the few mosques in Morocco that admits non-Muslim visitors, and the only way to see the interior is on a guided tour. Tours run roughly every thirty minutes and can be booked on site or through the mosque's official website. The minaret's observation deck at 198 metres gives views across the Atlantic on clear days.

The mosque is also a symbol of Moroccan national identity and confidence: built at a moment when the country was seeking to assert its cultural independence and its right to modern development without abandoning its craft traditions, it represented a deliberate choice to invest in heritage rather than in the industrial infrastructure that most postcolonial states prioritised. The fact that the minaret was built to the same height as the tallest building in Casablanca was a political statement: the religious tower would be the tallest structure in the city, visible from the sea as a daily reminder of Moroccan identity. The interior capacity of 25,000 worshippers makes it one of the few mosques in the world designed explicitly to hold a very large congregation, and the opening of the floor to reveal the sea below is a spatial gesture of unusual ambition.

The 210-metre minaret is the tallest religious structure of its kind in the world.

The mosque is a modern masterpiece of traditional Moroccan craft: carved plaster, cedar wood, and marble used on a scale that would have been impressive in any historical period.

Non-Muslim visitors can tour the interior — a rare privilege among Moroccan mosques.