Chartres Cathedral in the context of "Flamboyant"

Stained glass refers to coloured glass as a material or art and architectural works created from it. Although it is traditionally made in flat panels and used as windows, the creations of modern stained glass artists also include three-dimensional structures and sculpture. Modern vernacular usage has often extended the term "stained glass" to include domestic lead light and objets d'art created from glasswork, for example in the famous lamps of Louis Comfort Tiffany.

As a material stained glass is glass that has been coloured by adding metallic salts during its manufacture. It may then be further decorated in various ways. The coloured glass may be crafted into a stained-glass window, say, in which small pieces of glass are arranged to form patterns or pictures, held together (traditionally) by strips of lead, called cames or calms, and supported by a rigid frame. Painted details and yellow-coloured silver stain are often used to enhance the design. The term stained glass is also applied to enamelled glass in which the colors have been painted onto the glass and then fused to the glass in a kiln.

Stonemasonry or stonecraft is the creation of buildings, structures, and sculpture using stone as the primary material. Stonemasonry is the craft of shaping and arranging stones, often together with mortar and even the ancient lime mortar, to wall or cover formed structures.

The basic tools, methods and skills of the banker mason have existed as a trade for thousands of years. It is one of the oldest activities and professions in human history. Many of the long-lasting, ancient shelters, temples, monuments, artifacts, fortifications, roads, bridges, and entire cities were built of stone. Famous works of stonemasonry include Göbekli Tepe, the Egyptian pyramids, the Taj Mahal, Cusco's Incan Wall, Taqwesan, Easter Island's statues, Angkor Wat, Borobudur, Tihuanaco, Tenochtitlan, Persepolis, the Parthenon, Stonehenge, the Great Wall of China, the Mesoamerican pyramids, Chartres Cathedral, and the Stari Most.

Stained glass refers to coloured glass as a material or art and architectural works created from it. Although it is traditionally made in flat panels and used as windows, the creations of modern stained glass artists also include three-dimensional structures and sculpture. Modern vernacular usage has often extended the term "stained glass" to include domestic lead light and objets d'art created from glasswork, for example in the famous lamps of Louis Comfort Tiffany.

As a material stained glass is glass that has been coloured by adding metallic salts during its manufacture. It may then be further decorated in various ways. The coloured glass may be crafted into a stained-glass window, in which small pieces of glass are arranged to form patterns or pictures, held together (traditionally) by strips of lead, called cames or calms, and supported by a rigid frame. Painted details and yellow-coloured silver stain are often used to enhance the design. The term stained glass is also applied to enamelled glass in which the colors have been painted onto the glass and then fused to the glass in a kiln.

Chartres (French pronunciation: [ʃaʁtʁ] ) is the prefecture of the Eure-et-Loir department in the Centre-Val de Loire region in France. It is located about 90 km (56 mi) southwest of Paris. At the 2019 census, there were 170,763 inhabitants in the metropolitan area of Chartres (as defined by the INSEE), 38,534 of whom lived in the city (commune) of Chartres proper.

Chartres is famous worldwide for the Chartres Cathedral. Mostly constructed between 1193 and 1250, this Gothic cathedral is in an exceptional state of preservation. The majority of the original stained glass windows are intact, while the architecture has seen only minor changes since the early 13th century. Part of the old town, including most of the library associated with the School of Chartres, was destroyed by Allied bombs in 1944.

A porch (from Old French porche; from Latin porticus 'colonnade', from porta 'passage') is a room or gallery located in front of an entrance to a building. A porch is placed in front of the façade of a building it commands, and forms a low front. Alternatively, it may be a vestibule (a small room leading into a larger space) or a projecting building that houses the entrance door of a building.

Porches exist in both religious and secular architecture. There are various styles of porches, many of which depend on the architectural tradition of its location. Porches allow for sufficient space for a person to comfortably pause before entering or after exiting a building, or to relax on. Many porches are open on the outward side with balustrade supported by balusters that usually encircles the entire porch except where stairs are found.

High Gothic was a period of Gothic architecture in the 13th century, from about 1200 to 1280, which saw the construction of a series of refined and richly decorated cathedrals of exceptional height and size. It appeared most prominently in France, largely thanks to support given by King Louis IX (r. 1226–1270), also known as Saint Louis. The goal of High Gothic architects was to bring the maximum possible light from the stained glass windows, and to awe the church goers with lavish decoration. High Gothic is often described as the high point of the Gothic style.

High Gothic was a period, rather than a specific style; during the High Gothic period, the Rayonnant style was predominant. Notable High Gothic cathedrals in the Rayonnant style included Reims Cathedral, Amiens Cathedral, Bourges Cathedral, Chartres Cathedral, and Beauvais Cathedral.

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.

French scholars divide the Gothic of their country into four phases: British and American historians use similar periods.