From 7pm to midnight, Fête des Puces brings the different Saint-Ouen markets to life. Paul Bert Serpette celebrates its 80th anniversary, Dauphine opens the hyperLOFT exhibition with a concert and DJ sets, while Biron hosts a Second Empire ball. Some markets keep the celebrations going until September 27. Walk, browse, stop in front of the same object and compare finds. A shared taste for design, vintage pieces or curiosities becomes visible straight away. Note that the night event is announced as invitation-only, with invitations available through the individual market websites.