There are several Moulins (windmills) in Paris (Moulin Rouge, Moulin de la galette...) but they're all "fake" or rather old windmills that have been turned into restaurants or cabarets. This one remains in its original state, and it's called Le Moulin de Rouvray. It's located in the Bois de Boulogne (the woods around the Western part of Paris). It was built in 1312 within an Abbey founded in 1255 by Isabelle de France, the daughter of Louis the 8th. The Abbey was destroyed in 1795, but the windmill survived until now (it has not been used as a real windmill since 1809 though! It cannot be visited unfortunately, but you can see it from the street where I was yesterday.