Heritage Days: our ten favorite visits in Île-de-France without reservation

In Île-de-France, more than 2,200 events are scheduled. For the past four years, the vast majority of them have required a reservation. But if you missed the boat, don’t worry: a good number of them remain accessible at the last minute, subject to availability. Today, we’re giving you our ten favorites to make the most of these two days of meeting our History.