The Louvre museum, home to the “Mona Lisa,” is the heart of this lively district that features Hausmann-era boulevards and parks such as the Tuileries and the 17th-century Palais Royal. Fashionistas troop to the designer boutiques and luxury jewelers along chic Rue Saint Honoré and Place Vendôme. Les Halles shopping district has international fashion chains along Rue de Rivoli and in a vast underground mall.