Understated Place Dauphine dates from 1860 and was named for Henry IV’s son, who became Louis XII. Untouched by Haussmann’s 19C revamp of the island, the benches amid chestnut trees have long been contemplative places for socialites, including actors Yves Montand and Simone Signoret, who lived in the residences overlooking Place Dauphine. Walking directions and map in your No Worries Paris guidebook