The Arc de Triomphe de l'Étoile is one of the most famous monuments in Paris, France, standing at the western end of the Champs-Élysées at the center of Place Charles de Gaulle, formerly named Place de l'Étoile—the étoile or "star" of the juncture formed by its twelve radiating avenues.
The Arc de Triomphe is located on the right bank of the Seine at the center of a dodecagonal configuration of twelve radiating avenues. It was commissioned in 1806, after the victory at Austerlitz by Emperor Napoleon at the peak of his fortunes. Laying the foundations alone took two years and, in 1810, when Napoleon entered Paris from the west with his new bride, Archduchess Marie-Louise of Austria, he had a wooden mock-up of the completed arch constructed. The architect, Jean Chalgrin, died in 1811 and the work was taken over by Jean-Nicolas Huyot.
The central cohesive element of the Axe historique (historic axis, a sequence of monuments and grand thoroughfares on a route running from the courtyard of the Louvre to the Grande Arche de la Défense), the Arc de Triomphe was designed by Jean Chalgrin in 1806; its iconographic program pits heroically nude French youths against bearded Germanic warriors in chain mail. It set the tone for public monuments with triumphant patriotic messages. Inspired by the Arch of Titus in Rome, Italy, the Arc de Triomphe has an overall height of 50 meters, a width of 45 m, and a depth of 22 m, while its large vault is 29.19 m high and 14.62 m wide. The smaller transverse vaults are 18.68 m high and 8.44 m wide. Three weeks after the Paris victory parade in 1919 (marking the end of hostilities in World War I), Charles Godefroy flew his Nieuport biplane under the arch's primary vault, with the event captured on newsreel.
Following its construction, the Arc de Triomphe became the rallying point of French troops parading after successful military campaigns and for the annual Bastille Day military parade. Famous victory marches around or under the Arc have included the Germans in 1871, the French in 1919, the Germans in 1940, and the French and Allies in 1944 and 1945. A United States postage stamp of 1945 shows the Arc de Triomphe in the background as victorious American troops march down the Champs-Élysées and U.S. airplanes fly overhead on 29 August 1944. After the interment of the Unknown Soldier, however, all military parades (including the aforementioned post-1919) have avoided marching through the actual arch. The route taken is up to the arch and then around its side, out of respect for the tomb and its symbolism.
According to Wikipedia