The most impressive: Surrounded by great places (Avenue des Champs-Elysées, Jardins des Tuileries, Hôtel Crillon, etc...), it's located in the axis "Arc de Triomphe, Louvre and Arche de la Defense ". In its center is erected the Obelisque, offered by the Egyptians to Napoleon. There are also nice fountains filling that big space, which is nice to see very early morning (when the traffic is low) or at night, with all the monuments, streets and car lights.