Two days just wandering around on my own and with friends. 360° panoramic view from the roof of Institut du Monde Arabe gave me good understanding of the city layout, the view is really good.
View from rooftop observation deck at Institut du Monde Arabe
The day was all about ☞ Versaillles. Took M4 to Gare Montparnasse and local, but fast non-stop train. No railroad strike that day. I was very lucky as my friend works at Versailles and gave me a private tour. We started at the Royal Chapel, visited the upstairs quarters, joined tourist stream to visit main atractions, returned to the Chapel. I then made a big loop zig-zagging through the park and gardens, watching fountain show, walking to Orangerie at the end.
Mirror Basin
We walked through town a bit, found a nice restaurant for dinner, and returned by RERC and bus to the city center. I walked by Notre Dame, Hotel de Ville and Pompidou Center to my place.
Return to Paris: Chicago ORD ➜ Paris CDG ➜ RER B to Les Halles ➜ Arts et Métiers airbnb@Rue au Maire ➜ walk around neigborhood and to Notre Dame and Pont Neuf. Travel was easy. No waiting, no crowds anywhere: two hours from Hyde Park to gate at ORD, two hours from arrival at CDG to my airbnb@Rue au Maire. Grocery shopping at supermarche. Longer coffe break. Here is the rest of the afternoon…not much to add.