The Hassan II mosque can hold up to twenty five thousand people, and the complex covers over nine hectares. There is a balcony for women which can hold up to five thousand, and the main floor of the mosque allows another twenty thousand. The courtyard is large enough to accommodate another eighty thousand individuals. The Hassan II mosque includes some modern elements, such as a heated floor, doors which operate on electricity, and a floor made from glass so the ocean below can be viewed. The roof also offers modern features, and can be opened up on days when the weather is nice.