It is possible to teach yourself to see and hear more. (Perhaps it is not possible to teach yourself the French keyboard.)
One should be younger for Paris, I think. So far I have been to Notre Dame, Musée d'Orsay, Pantheon.
Art Nouveau revival at Musée d'Orsay turned out to be posters from the Fillmore. I had friends who were rock musicians during that period and had the posters put around the ceiling of their house. Friend would point out the name of their group on the posters, but I no longer remember what it was. Not Jefferson Airplane.
The French have no fear of modern architecture. We may make buildings into cones or boxes, but true modernism requires the French.