Encompassing two of the Netherlands’ three largest cities (Rotterdam and The Hague), Zuid-Holland (South Holland) is also home to important towns like Leiden, Gouda and Delft. And many lovely smaller towns dot the gorgeous green landscape. Alphen aan den Rijn has several interesting attractions, including Dutch history theme park Archeon. Picturesque Kinderdijk, birthplace of the legend of the Cat and the Cradle, also has many windmills that together are a UNESCO World Heritage Site.