This is unique, It is the newest 'vitrail', stained-glass window, in the cathedral. There are 2 of them, will show you the other one as soon as I found a way to put a 5 meters tall window in a photo, without breaking my neck.
What's special about this one...The face is composed of photos of 150 anonymous inhabitants of our fair city. This photo were sepia-colored, and somehow transposed into glass tiles. At a cost of 200.000 euros, to celebrate the cathedral's millennium, in 2015. The picture was taken from a 15th century painting. Amazing thing.