Usually takes place during this period
September Date not confirmed
The date of the next edition has not been confirmed yet. Check with the organizer before your trip.
Where
One weekend a year when buildings normally closed to the public open their doors — ministries, the Élysée Palace, the Senate, private châteaux — and many museums are free of charge.
Official source
The organiser publishes the programme and the latest information.
Ministère de la Culture ↗