The Hassan II Mosque in Casablanca is the world’s seventh largest mosque and took five years of intensive labor by over 30,000 workers and craftsman to complete in 1993. The mosque’s minaret at 689 feet (210 m) high is the world’s tallest, and it is Casablanca’s chief landmark. In terms of covered area, the Hassan II Mosque is the largest in the world and has space for 80,000 worshippers.