Located in a posh residential neighborhood and ringed by stately mansions, this small park is the brainchild of the duke of Chartres (the future Philippe Egalité), who commissioned a fanciful garden in 1769 filled with folies, faux romantic ruins, temples, and antiquities inspired by exotic far-away places. Don’t be surprised to stumble upon a minaret, a windmill, or a mini-Egyptian pyramid here; the most famous folie is the Naumachie, a large oval pond surrounded in part by Corinthian columns. The park has had several makeovers over the centuries, but it is still essentially an English-style garden, complete with wooded glens and hillocks. A sizeable playground is in the southwest corner, as well as a merry-go-round near the north entrance, where columns surround a round pavilion; the Duke of Chartres used to keep a small apartment on the second floor from which he could see the entire park.