The marvelous panorama of Paris can be enjoyed from the height of the Eiffel Tower; from the observation deck or the roof of the Montparnasse tower (57 floors)

From the site of the Grande Arche, La Défense, you can see the whole quarter of Défense and the western part of Paris

Other places with a panoramic view of the neighborhood: The Arc de Triomphe on the Champs Elysées, the Pantheon, center of Georges Pompidou, Notre Dame Cathedral, observation deck in front of the entrance to the Sacré-Cœur basilica, Lafayette gallery