Inside the swish Hôtel Particulier Montmartre, this unexpected bar offers an ultra-sensual atmosphere. Acting as an extension of the garden, it proposes plant-filled rooms with brass and aged mirrors providing a play on perspectives. Here, in bright red sofas and armchairs on a black-and-white chequerboard floor, guests relax at tea-time with refined pastries, or in the evening when the place is transformed into an audacious cocktail bar with a menu combining gastronomy and the fine art of mixology. Chic ! Le Très Particulier, Hôtel Particulier Montmartre, 2 avenue Junot, Paris 18 (01 53 41 81 40).