Holland - Haarlem - Frans Hals Museum
Glass in lead window (detail) representing Geometry.
There are six of such glass in lead windows in a row to be admired in just one corridor of the museum.
Please see this picture in original view and then click on enlarge!
On December 31, 2006 my grandson and I went to visit the Haarlem Frans Hals Museum. I have just found a nice link to this museum for you on the internet, which also enables you to make a virtual tour:
http://www.franshalsmuseum.nl/index_en.html
Photo 13