The stained glass windows of the Notre-Dame are very beautiful and a good part of them date from the 13th century when the cathedral was constructed. In this author's opinion, Notre-Dame's collection of stained glass is not as impressive as those at other French cathedrals, such as Chartres and Bourges, and in Paris the best place to enjoy an overall effect of stained glass is probably not Notre Dame but Sainte-Chapelle.
Nevertheless, Notre-Dame's stained glass windows remain an important and beautiful work of 13th-century Gothic art, with interesting details well worth exploring in more detail. The highlight - and the greatest survival of original glass - is the set of three beautiful rose windows, which shine like jewels over the west door and in the north and south transept.