" For another intimate insight into these treasures, choose a walking tour with A Journey in Paris (ajourneyinparis.com). Run by city resident Solène Colas, the art nouveau walking tour takes in some of the city’s best architectural examples, such as the Gare SaintLazare and some of the great 19th-century department stores or grands magasins. Solène also runs a four-hour tour of Saint Ouen flea market, ideal for those who are on a short time frame. To make every minute count, Solène asks you to choose a couple of themes, such as furniture and vintage jewellery, and tailors your visit accordingly. With connections to many of the dealers, Solène can also help you negotiate a good deal on something lovely to take home with you. "