The Hassan II Mosque is the 3rd largest religious monument in the world. 10000 craftsmen worked for 5 years to have it ready for KIng Hassan II's 60th birthday. The mosque is quite an impressive structure. The minaret is 210m high and at night laser beams shoot towards Mecca. The mosque can hold 25000 people with a further 80000 in the esplandes around it. The interior has a heated floor and has asliding roof. The prayer hall is said to be large enough to house Notre Dame. Possibly the most amazing fact is that the $600 million US bill was prety much paid for by donations. It is certainly worth doing the tour as the outside, while very nice is only the tip of the iceberg.