We have already booked our tickets for the Louvre, catacombs, Versailles Palace, and the Anne Frank House, but I hear there is a lot of "free" things to do in those places.
Here are some ideas for some free things in Paris:
Place des Vosges - the prettiest square in Paris, in the 4th arrondissement near the St. Paul Metro station. Gorgeous brick arcades surround the square on all 4 sides. There is an exit/entrance near the SW corner which leads to another very pretty, small green space.
Promenade Plantée - This is like the
High Line in NY, except that it precedes the High Line. Like the High Line, it was a disused elevated railway. It's more like a traditional park than the High Line and isn't nearly as crowded. It begins just east of the Place de la Bastille and goes eastward.
Cool Stuff in Paris | La Promenade Plantée, a beautiful elevated park built on old train tracks
The same website has a very good listing of off-the-beaten track sights in Paris, including many free sights:
Cool Stuff in Paris | Cool and Weird Stuff
Many years ago, Adam Gopnik, who was sent to Paris by The New Yorker for a couple of years, published a delightful book called
Paris to the Moon, which is a collection of essays which had been separately published in
The New Yorker. Several times he mentioned a fascinating shop called
Deyrolle in the 7th. It's worth having a look in the store if you're in the neighborhood.
Cool Stuff in Paris | Deyrolle - legendary taxidermy shop in Paris, France
The same website lists a shop which has somehow missed my radar. Next time in Paris, I'll definitely have a look at the storefront of the pest control shop displaying dead rats. The photo in the next link is impressive:
Cool Stuff in Paris | Julien Aurouze and Co.
The coolest Metro station in Paris, Arts et Métiers (line 11):
Cool Stuff in Paris | Métro Arts et Métiers - steampunk subway station in Paris, France