SOUTH HOLLAND: is located in the west of the country on the North Sea coast. It is the most densely populated and industrialised of the Dutch provinces . It contains the major cities of The Hague (Den Haag or 's-Gravenhage) (the seat of government of the country and the seat of the International Court of Justice) and Rotterdam. Dordrecht, Leiden, Delft and Gouda have town centers with many 17th-century buildings. Katwijk has its city center situated near the beach. Rotterdam has one of the world's