The northern town of Franeker is a typical dutch affair, cobble streets, canals, people parking AT the side of the canals (I wonder how many cars have dropped in due to bad parking) and there is free parking just outside of town with only a few minutes walk to the planetarium.

This should already be on the WH list, ages and ages ago. It has a lot more going than "Defense Lines" or a canal ring, or Schokland obviously, and I'm not directly saying these are bad sites but the planetarium has a huge unique clockwork going that, flawed a little because it does not account for leap years, still works today, as well a super interesting museum padding it. I wish to have a wide-angle camera just for the planet room, and I would like to spend more time just seeing the gears working - fascinating.

Although you can browse around by yourself it really helps to attend the Dutch/English talk where you can ask questions. Overall if you are open for learning about astronomy it can take 2 hours to get through the li'l house.