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Pointed arches

The defining characteristic of the Gothic style is the pointed arch, which was widely used in both structure and decoration. The pointed arch did not originate in Gothic architecture; they had been employed for centuries in the Near East in pre-Islamic as well as Islamic architecture for arches, arcades, and ribbed vaults. In Gothic architecture, particularly in the later Gothic styles, they became the most visible and characteristic element, giving a sensation of verticality and pointing upward, like the spires. Gothic rib vaults covered the nave, and pointed arches were commonly used for the arcades, windows, doorways, in the tracery, and especially in the later Gothic styles decorating the façades. They were also sometimes used for more practical purposes, such as to bring transverse vaults to the same height as diagonal vaults, as in the nave and aisles of Durham Cathedral, built in 1093.

The earliest Gothic pointed arches were lancet lights or lancet windows, which are narrow windows terminating in a lancet arch. A lancet arch has a radius longer than their breadth (width) and resembles the blade of a lancet. In the 12th-century First Pointed phase of Gothic architecture (also called the Lancet style) and before the introduction of tracery in the windows in later styles, lancet windows predominated Gothic building.

The Flamboyant style of Gothic architecture is particularly known for lavish pointed details such as the arc-en-accolade, where a pointed arch over a doorway was topped by a pointed sculptural ornament called a fleuron and by pointed pinnacles on either side. The arches of the doorway were further decorated with small cabbage-shaped sculptures called chou-frisés.