Casablanca, Morocco's largest city, is a curious blend of the traditional and modern. It has all the hallmarks of a brash western metropolis, with a hint of the decadent langour that marks any of the Southern European cities that it resembles. But alongside these are the flowing robes of the old djellabah and burnooses of traditional Morocco. One of the highlights of the city is the enormous Hassan II Mosque but you still shouldn't miss out on the old medina.