Napoleon commissioned the Arc de Triomphe in 1806 to honour his Grand Army, but he never saw it completed — construction took thirty years. The arch stands 50 metres high at the centre of Place Charles de Gaulle, where twelve grand avenues converge in a star pattern that remains one of the most dramatic pieces of urban planning in any European city.
At its base lies the Tomb of the Unknown Soldier, where an eternal flame has burned since 1923. The inscribed names of 660 generals are carved into the inner walls. Climb to the top for a panoramic view of Paris's Haussmann boulevards radiating out in every direction — the Champs-Élysées stretching toward the Louvre on one axis, the skyscrapers of La Défense on the other.
Do not try to reach the arch from street level. Use the underground pedestrian passage; the roundabout above is one of the most dangerous in Europe and pedestrians have no right of way.