Notre Dame de Paris

Notre Dame de Paris (French for Our Lady of Paris), also known as Notre Dame Cathedral, is a Gothic, Catholic cathedral on the eastern half of the Île de la Cité in the fourth arrondissement of Paris, France. It is the cathedral of the Catholic Archdiocese of Paris: that is, it is the church that contains the cathedra (official chair), of the Archbishop of Paris, currently André Vingt-Trois. The cathedral treasury houses a reliquary with the purported Crown of Thorns.

Notre Dame de Paris is widely considered one of the finest examples of French Gothic architecture in France and in Europe, and the naturalism of its sculptures and stained glass are in contrast with earlier Romanesque architecture. The first period of construction from 1163 into the 1240's coincided with the musical experiments of the Notre Dame school.

Notre Dame de Paris was among the first buildings in the world to use the flying buttress (arched exterior supports). The building was not originally designed to include the flying buttresses around the choir and nave. After the construction began and the thinner walls (popularized in the Gothic style) grew ever higher, stress fractures began to occur as the walls pushed outward. In response, the cathedral's architects built supports around the outside walls, and later additions continued the pattern. The cathedral was essentially complete by 1345.

The cathedral suffered desecration during the radical phase of the French Revolution in the 1790s, when much of its religious imagery was damaged or destroyed. An extensive restoration supervised by Eugène Viollet-le-Duc removed remaining decoration, returning the cathedral to an 'original' gothic state.

Jean de Jandun recognized the cathedral as one of Paris's three most important buildings in his 1323 "Treatise on the Praises of Paris":

that most terrible church of the most glorious Virgin Mary, mother of God, deservedly shines out, like the sun among stars. And although some speakers, by their own free judgment, because [they are] able to see only a few things easily, may say that some other is more beautiful, I believe however, respectfully, that, if they attend more diligently to the whole and the parts, they will quickly retract this opinion. Where indeed, I ask, would they find two towers of such magnificence and perfection, so high, so large, so strong, clothed round about with such a multiple variety of ornaments? Where, I ask, would they find such a multipartite arrangement of so many lateral vaults, above and below? Where, I ask, would they find such light-filled amenities as the many surrounding chapels? Furthermore, let them tell me in what church I may see such a large cross, of which one arm separates the choir from the nave. Finally, I would willingly learn where [there are] two such circles, situated opposite each other in a straight line, which on account of their appearance are given the name of the fourth vowel [O] ; among which smaller orbs and circlets, with wondrous artifice, so that some arranged circularly, others angularly, surround windows ruddy with precious colors and beautiful with the most subtle figures of the pictures. In fact I believe that this church offers the carefully discerning such cause for admiration that its inspection can scarcely sate the soul."