Windmills, windmills and more windmills....

After visiting Delft we drove just south of Rotterdam to a place called Kinderdyk. A great place to look at windmills...19 altogether in a very small area.
These windmills were built here to pump the water out of an area of agricultual land that is below sea level.
There is a much more detailed description in the link above...

This windmill is having its thatch repaired.

We hired bikes and rode around which was fun.