A couple of ideas for things to do this weekend in Paris.
Nuit des Musées
The Nuit des Musées is another French idea which has now been largely exported across the continent and beyond (indeed, the event is now known as the nuit européenne des musées). In Paris, over 170 events are planned in the city's museums, most of which will open until midnight, and all of which will be offering free entry.
Highlights include theatre at the Musée de la Chasse et de la Nature (which will be opening until 1am), a performance by automates and a treasure hunt at the Musée des Arts et Métiers, an artist's flea market at the Monnaie de Paris, a haunted photo walk for teenagers (called 'Oh my ghost'!) at the Petit Palais, a guided visit of the new Les Docks, Cité de la Mode et du Design and an evening of American folk music (in honour of Bob Dylan) at the Musée de la musique.
For full information on the museums particpating in Paris and the programme of events, see here: http://nuitdesmusees.culture.fr/ville/?q=UGFyaXM
Note: Paris smartphone app creators Urban Pulse have designed a special 'Nuit des Musées' app which includes a list of themed walks linking participating museums and events. Perhaps more importantly, they also promise live information on how long queues are at the various locations around the city, helping you to carefully plot your evening! Visit the site for information on how to download the (free) app: http://urbanpulse.fr/sortez-de-chez-vous/nuit-europeenne-des-musees/
Le Gras Savoye Grand Steeple-Chase de Paris
This Sunday sees the running of the richest and most prestigious jumps race of the year in France, at the Auteuil race track in the Bois de Boulogne. Run over a distance of more than five miles and more than 20 hurdles, it was first organised in 1874 as the French equivilent of the English Grand National, and attracts thousands of race fans - as well as international jet setters to the hippodrome.
For more information see: http://www.grandsteeple.com/.