Andrea never had been in the Hague before, she only had been in Amsterdam once. So what is better then showing her the whole in Netherlands but then in the small? Madurodam is a small park where you can visit the whole of the Netherlands in just one single day. They also have some very nice attractions that will teach you about the history of the Netherlands and even the beginning of New Amsterdam (New York).
Madurodam is founded by the parents of the family of George Maduro, a Dutch War hero that saved a lot of soldiers during the second world war. As a token of gratitude, this park was built. There is even a impressive show that tells the story of George Maduro. Andrea loved the park very much. All the popular attractions, like dam square, popular buildings and even schiphol is built in it’s mini version. It was simply amazing to feel like giant for one day, exploring the Netherlands in way you normally cannot do.
I think that after half a day, you’ve seen enough. However there is a very large shop where you can buy incredible dutch stuff. So make sure you visit the shop at the entrance/exit before you leave!