Every year it’s the same story: as Heritage Days approach, you’re one of the last to get around to it… But since we’re nice, we’ve put together a short guide to the must-see attractions that don’t require any reservations. The only rule, as always—and to really stack the odds in your favor— is to get there early! Here are our favorite spots!
Free admission during Heritage Days—no reservation required. Among the must-see spots if you’re looking for a visit that doesn’t require a reservation, the Royal Opera House at the Palace of Versailles is opening its doors to the public especially for Heritage Days, featuring costume exhibitions, singing performances, and a tour of the King’s Box. Admission is free and no reservation is required.
Discover the Choiseul Royal Library, a hidden gem of Versailles, for free. If you’re looking for an activity to enjoy without a reservation during Heritage Days in late September, head to Versailles: the sumptuous Choiseul Municipal Library opens its doors to the public forfree, showcasing its gilded decorations, wood paneling, and flat brick vaults. Reservations can be made on-site the same day at the gallery’s reception desk.
Discover the splendid 8th arrondissement town hall, a little-known Second Empire gem that’s open for free. Among the attractions you can visit without a reservation during Heritage Days, the 8th arrondissement town hall—a sumptuous private mansion with Second Empire décor—is opening its salons to the public on a special basis. Free tours on September 19 from 2:00 p.m. to 6:00 p.m. (free admission).
A special treat: the Sorbonne’s secret library is open to the public for free for one weekend! Among the hidden gems to discover without a reservation during Heritage Days, the Sorbonne’s interuniversity library—a heritage treasure dating back more than 200 years—is opening its doors for a special event. Guided tours are free on September 19 and 20, 2026, at 47 rue des Écoles.
Admission is completely free on September 19 and 20, 2026! Among the attractions you can visit without a reservation during European Heritage Days, the Sainte-Chapelle is opening its doors for free on September 19 and 20, 2026 (admission normally costs 22 €). This 13th-century Gothic masterpiece is famous for its 15 stained-glass windows and 1,113 stained-glass scenes.
A bucolic 650-square-meter garden with a spectacular view of the Eiffel Tower. If you’re looking for an outing that doesn’t require a reservation during Heritage Days, head to the Maison de Balzac, located in the 16th arrondissement. It features a bucolic 650-square-metergarden with a tea room (Rose Bakery) and a remarkable view of the Eiffel Tower. The museum’s permanent collection is free year-round, making it the perfect spot for an afternoon in nature without leaving Paris.
Explore the Vieux-Pays de Goussainville for free during the Heritage Days guided tours. If you’re looking for an activity that doesn’t require a reservation during EuropeanHeritageDays, opt for these guided tours: four one-hour tours let you explore the Vieux-Pays de Goussainville for free, including its history shaped by the airport and the Saint-Pierre-Saint-Paul Church.
A 600-year-old keep needs your help! If you’re looking for an outing that doesn’t require a reservation during Heritage Days, head to Crouy-sur-Ourcq, an hour from Paris: the medieval keep at Le Houssoy is in danger and is the subject of a fundraising campaign launched by the Heritage Foundation. The monument will be open to the public free of charge for European Heritage Days on September 19, 2026, from 10 a.m. to 6 p.m.
An hour and a half from Paris, Haute-Isle is the ideal getaway for an immersion in history and enchanting landscapes. For a change of pace from Parisian attractions during Heritage Days (and without a reservation), head to the Seine Valley: the troglodytic village of Haute-Isle transports you to another era with its dwellings carved into the limestone rock. Listed as a historic monument, the Church of the Annunciation is an architectural rarity, while the heritage trail invites visitors to explore this unique site and its works of art. Just an hour and a half from Paris, Haute-Isle is the perfect getaway for an immersion into history and enchanting landscapes.
Free permanent collections at the Musée de la Vie Romantique. If you’re looking for a visit that doesn’t require a reservation during Heritage Days, the Musée de la Vie Romantique offers free access to its permanent collections (subject to capacity limits). And to make the experience last a little longer, you can also enjoy its charming tea room.