De Cat is the only mill in the world that still produces paint to this day, and it is a must-visit when coming to the picturesque town of Zaandam, located in the village of Zaanse Sanch on the Zaan River. This mill grinds the chalk that is used to make pigments for paints in the traditional way, in addition to providing a distinctive panoramic view for everyone who climbs to its viewing platform of the surrounding landscape.