The five windmills of Zaanse Schans, a short distance from Amsterdam, are perhaps best known as the backdrop for thousands of tourists’ selfies. So, it might come as a surprise to find that one of them, Verfmolen De Kat, is the only windmill in the world that still grinds pigments to make artists’ paints – using methods dating back to the 17th century. "For these difficult pigments there were windmills (to gind the pigment) explains Peter Pelkmans, an art tutor at the Rijksmuseum drawing school. IMAGES AND SOUNDBITES