The Hassan II Mosque in Casablanca is the third largest in the world after those at Mecca and Medina, and its minaret, at 210m, is the tallest of all. It was built to commemorate former king Hassan II's 60th birthday in 1993. Designed by frenchman Michel Pinseau, over 6000 Moroccan artisans were employed in its construction. It can accommodate 25000 worshippers in its interior and another 80000 in the courtyard. It is one of the few religious buildings in Morocco open to non-Muslims.