Arc de Triomphe
Paris, France.
In the middle of the Place Charles de Gaulle, at the border of the 8th, 16th and 17th arrondissement stands the greatest arch in history: the Arc de Triomphe (arch of triumph).
It was commissioned by Napoleon in 1806 to commemorate his victories, but he was ousted before the arch was completed. In fact, it wasn't completed until 1836 during the reign of Louis-Philippe.