Travellers will set off on foot to discover Nancy city centre with an immersive smartphone audio guide, narrated by Monsieur de France with music, atmospheres and sound effects. Google Maps links guide them from one step to the next, with no group to follow or timetable imposed. During the walk, they will discover Nancy’s must-sees: Place Stanislas, the old town, the ducal palace, the old streets, the Parc de la Pépinière and several places linked to history, legends and local flavours. At each stop, they will listen to a living storey mixing great history, amazing anecdotes and Nancy secrets. They will meet Stanislas Leszczynski, the Dukes of Lorraine, Mozart, the Statue of Liberty, witches, and discover Nancy's specialities: rum baba, madeleines, macarons, bergamots and quiche Lorraine. Everyone progresses at their own pace: photo break, terrace, shop, monument or delicacy, then resume the visit whenever they wish. This tour is thought of as a living experience: you look at the city, listen to its stories, discover its characters and keep the freedom to stop where you want without pressure.