English: Notre-Dame de Paris (Our Lady of Paris), is a historic Catholic cathedral on the eastern half of the Île de la Cité in the fourth arrondissement of Paris. The cathedral is widely considered to be one of the finest examples of French Gothic architecture, and it is among the largest and most well-known Christian church buildings in the world. The naturalism of its sculptures and stained glass are in contrast with earlier Romanesque architecture.

As the cathedral of the Archdiocese of Paris, Notre-Dame is the parish that contains the cathedra, or official chair, of the archbishop of Paris. The cathedral treasury is notable for its reliquary which houses some of Catholicism's most important first-class relics including the purported Crown of Thorns, a fragment of the True Cross, and one of the Holy Nails.

In the 1790s, Notre-Dame suffered desecration during the radical phase of the French Revolution when much of its religious imagery was damaged or destroyed. An extensive restoration supervised by Eugène Viollet-le-Duc began in 1845. A project of further restoration and maintenance began in 1991 [Wikipedia.org]

The South Rose Window, a central element that thrones over the transept façade, was constructed in 1260 as a counterpoint to the North Rose Window, which was built in 1250.

Like its north sister, the South Rose Window reached 12.90 metres in diameter and, if you include its bay, a total height of nearly 19 metres [notredamedeparis.fr]