You can easily spend lots of cash in Paris. But, you can just as easily get away with spending very little and end up seeing a lot more than most people do. Here's a list of museums that are always free to visit:

Fragonard Muse de Parfum: Located a block from Opra Garnier in a town house decorated in the Napolean III period style, this museum offers visitors a totally free guided tour through a collection of perfumery objects and of Fragonard's history.

Maison Victor Hugo: Visit the home of the famous author of Les Miserables and the Hunchback of Notre Dame. Located in the Place des Vosges, the oldest square in Paris, this small museum offers free admission.

Memorial du Marechal Leclerc de Hauteclocque & Muse Jean Moulin: Enrich your knowledge of France during WWII by understanding two of its key figures: Marshal Leclerc and Jean Moulin. The permanent collection is free to visitors.

Muse d'Art Moderne: There is no admission charge to see the permanent collection of this fantastic museum, which features everything from Cubist to Contemporary works of art.

Maison de Balzac: Admission is free of charge to the house of this 19th century French novelist, which features a library dedicated to his books.

Muse Bourdelle: Visit the well-preserved studio of sculptor Antoine Bourdelle, a student of Rodin. The museum houses over 500 works by Bourdelle, as well as his collection of Delacroix, Ingres, Puvis de Chavannes, and Rodin himself. Admission is free.

Muse Carnavalet & Muse de l'Histoire de Paris: From archaeological artifacts to French Revolution pieces and art works from notable historic Parisian families, both of these adjoining museums follow the history of France's capital from its inception to present day. Free admission to the permanent collection.

Muse Cernuschi: Henri Cernuschi bequeathed his home and private art collection to the city of Paris in 1896. Ever since then, the museum showcases his ancient Chinese pottery and jade pieces, as well as an impressively large bronze Buddha sculpture. Free to the public.

Muse Cognacq-Jay: This 16th century house, once belonging to La Samaritaine department store founder Ernest Cognac-Jay, now presents a good collection of 18th century decorative objects, as well as fine art by Boucher, Fragonard, and Watteau.? Free to the public.

Muse Curie: The museum features Nobel Prize Scientist Marie Curie's famous laboratory with all the original furnishings, along with exhibits dedicated to the history of her discover of radioactivity and its applications. Available to the public at no cost.