
Eugène Emmanuel Viollet-le-Duc was a French architect and author, famous for his restoration of the most prominent medieval landmarks in France. His major restoration projects included Notre-Dame de Paris, the Basilica of Saint Denis, Mont Saint-Michel, Sainte-Chapelle, the medieval walls of the city of Carcassonne, and Roquetaillade castle in the Bordeaux region.

Gothic architecture is an architectural style that was prevalent in Europe from the late 12th to the 16th century, during the High and Late Middle Ages, surviving into the 17th and 18th centuries in some areas. It evolved from Romanesque architecture and was succeeded by Renaissance architecture. It originated in the Île-de-France and Picardy regions of northern France. The style at the time was sometimes known as opus Francigenum ; the term Gothic was first applied contemptuously during the later Renaissance, by those ambitious to revive the architecture of classical antiquity.

Notre-Dame de Paris, often referred to simply as Notre-Dame, is a medieval Catholic cathedral on the Île de la Cité, in the 4th arrondissement of Paris, France. The cathedral, dedicated to the Virgin Mary, is considered one of the finest examples of French Gothic architecture. Several attributes set it apart from the earlier Romanesque style, including its pioneering use of the rib vault and flying buttress, its enormous and colourful rose windows, and the naturalism and abundance of its sculptural decoration. Notre-Dame is also exceptional for its three pipe organs and its immense church bells.

The Basilica of Saint-Denis is a large former medieval abbey church and present cathedral in the commune of Saint-Denis, a northern suburb of Paris. The building is of singular importance historically and architecturally as its choir, completed in 1144, is widely considered the first structure to employ all of the elements of Gothic architecture.

The Sainte-Chapelle is a royal chapel in the Gothic style, within the medieval Palais de la Cité, the residence of the Kings of France until the 14th century, on the Île de la Cité in the River Seine in Paris, France.

A spire is a tall, slender, pointed structure on top of a roof of a building or tower, especially at the summit of church steeples. A spire may have a square, circular, or polygonal plan, with a roughly conical or pyramidal shape. Spires are typically made of stonework or brickwork, or else of timber structures with metal cladding, ceramic tiling, roof shingles, or slates on the exterior.

Strasbourg Cathedral or the Cathedral of Our Lady of Strasbourg, also known as Strasbourg Minster, is a Catholic cathedral in Strasbourg, Alsace, France. Although considerable parts of it are still in Romanesque architecture, it is widely considered to be among the finest examples of Rayonnant Gothic architecture. Architect Erwin von Steinbach is credited for major contributions from 1277 to his death in 1318, and beyond through his son Johannes von Steinbach, and his grandson Gerlach von Steinbach, who succeeded him as chief architects. The Steinbachs’ plans for the completion of the cathedral were not followed through by the chief architects who took over after them, and instead of the originally envisioned two spires, a single, octagonal tower with an elongated, octagonal crowning was built on the northern side of the west facade by master Ulrich Ensingen and his successor, Johannes Hültz. The construction of the cathedral, which had started in the year 1015 and had been relaunched in 1190, was finished in 1439.

The Cathedral Basilica of Our Lady of Amiens, or simply Amiens Cathedral, is a Catholic cathedral. The cathedral is the seat of the Bishop of Amiens. It is situated on a slight ridge overlooking the River Somme in Amiens, the administrative capital of the Picardy region of France, some 120 kilometres north of Paris.

A flèche is the name given to spires in Gothic architecture. In French, the word is applied to any spire, but in English it has the technical meaning of a spirelet or spike on the rooftop of a building. In particular, the spirelets often built atop the crossings of major churches in mediaeval French Gothic architecture are called flèches.

Rouen Cathedral is a Catholic church in Rouen, Normandy, France. It is the see of the Archbishop of Rouen, Primate of Normandy. It is famous for its three towers, each in a different style. The cathedral, built and rebuilt over a period of more than eight hundred years, has features from Early Gothic to late Flamboyant and Renaissance architecture. It also has a place in art history as the subject of a series of impressionist paintings by Claude Monet, and in architecture history as from 1876 to 1880, it was the tallest building in the world.

The Basilica of Saint-Sernin is a church in Toulouse, France, the former abbey church of the Abbey of Saint-Sernin or St Saturnin. Apart from the church, none of the abbey buildings remain. The current church is located on the site of a previous basilica of the 4th century which contained the body of Saint Saturnin or Sernin, the first bishop of Toulouse in c. 250. The church is particularly noted for the quality and quantity of its Romanesque sculpture. In 1998 the basilica was added to the UNESCO World Heritage Sites under the description: World Heritage Sites of the Routes of Santiago de Compostela in France.

Sens Cathedral is a Catholic cathedral in Sens in Burgundy, eastern France. The cathedral, dedicated to Saint Stephen, is the seat of the Archbishop of Sens.

Clermont-Ferrand Cathedral, or the Cathedral of Our Lady of the Assumption of Clermont-Ferrand, is a Gothic cathedral and French national monument located in the city of Clermont-Ferrand in the Auvergne. It is the seat of the Archbishops of Clermont.

French Gothic architecture is an architectural style which emerged in France in 1140, and was dominant until the mid-16th century. The most notable examples are the great Gothic cathedrals of France, including Notre-Dame Cathedral, Reims Cathedral, Chartres Cathedral, and Amiens Cathedral. Its main characteristics are verticality, or height, and the use of the rib vault and flying buttresses and other architectural innovations to distribute the weight of the stone structures to supports on the outside, allowing unprecedented height and volume. The new techniques also permitted the addition of larger windows, including enormous stained glass windows, which fill the cathedrals with light.

Notre-Dame de Reims, known in English as Reims Cathedral, is a Roman Catholic cathedral in the French city of the same name, the archiepiscopal see of the Archdiocese of Reims. The cathedral was dedicated to the Virgin Mary and was the traditional location for the coronation of the kings of France. Reims Cathedral is considered to be one of the most important works of Gothic Architecture. The cathedral, a major tourist destination, receives about one million visitors annually. It became a UNESCO World Heritage Site in 1991.

The Parvis Notre-Dame – Place Jean-Paul II is a city square in Paris, France. Located in the city's 4th arrondissement on the eastern half of the Île de la Cité, the square is bordered by the Hôtel-Dieu hospital to the north, the cathedral of Notre-Dame to the east, the Seine River to the south, and the Prefecture of Police headquarters to the west. The square contains France's point zéro marker, making it the very center of Paris for the purpose of measuring travel distance. Other points of interest include the Archaeological Crypt of the Île de la Cité and Charlemagne et ses Leudes, an equestrian statue of Charlemagne.

Jean-Baptiste-Antoine Lassus was a French architect who became an expert in restoration or recreation of medieval architecture. He was a strong believer in the early Gothic architecture style, which he thought as a true French and Christian tradition, and was opposed to the classical Graeco-Roman styles promoted by the academic establishment.
Geneviève Viollet-le-Duc was a French writer.

On 15 April 2019, at 18:18 CEST, a structural fire broke out in the roof space of Notre-Dame de Paris, a medieval Catholic cathedral in Paris, France.

The Basilica and Cathedral of Saint-Étienne in Paris, on the Île de la Cité, was an early Christian church that preceded Notre-Dame de Paris. It was built in the 4th or 5th century, directly in front of the location of the modern cathedral, and 250 meters from the royal residence, the Palais de la Cité. It became one of the wealthiest and most prestigious churches in France. Nothing remains above the ground of the original cathedral. It was demolished beginning in about 1163, when construction began on Notre-Dame de Paris. Vestiges of the foundations remain beneath the pavement of the square in front of Notre-Dame and beneath the west front of the cathedral. The church was built and rebuilt over the years in the Merovingian, Carolingian and Romanesque architectural styles.