Iris Amice loves history as much as she does chocolate. A professional guide certified by the French Ministry of Culture, the docent of this Paris Walks tour (€27) is roundly praised for the engaging manner in which she transmits nuggets of social and historical information. That she does so while handing around a box of truffles probably helps. Over two hours, participants visit a number of chocolatiers, slowly but surely coming to understand how Paris is not just the city of lights, but also the capital of dark chocolate. Unlike some other walking tours, Paris Walks welcomes children on a wander, so families might find it worthwhile to organise a private tour (prices vary).