The Journée du patrimoine (or heritage day) is definitely something you should mark down in your calendars. Every year for only one weekend in september thousands of monuments, government buildings, and privately owned sites of interest open their doors to the public. The lines are usually long, but they are really worth it. The theme of the 30th edition of the Journées du patrimoine is "1913-2013: 100 years of protection". Here are some of the things that we think you should see: - Fondation Pierre Bergé Yves Saint Laurent 10am to 6pm 5, avenue Marceau 75116 Discover the lounges and the offices of the Foundation as well as Mr Yves Saint Laurent's studio, the history of the couture house, the important moments of Yves Saint Laurent's career and the key steps of the haute couture garments making process. ©fondationyslpb - Biblioteque Sainte Genevieve: 10am to 7pm 10 Place du Panthéon 75005 ©Bibliothèque Sainte- Geneviève/ M. Nguyen - Le Sénat: 9:30am to 5:30pm 15 rue de Vaugirard 75006 ©senat - Theatre de la Comédie Francaise 1, place Colette 75001 ©Cosimo Mirco Magliocca, coll. Comédie-Française - Beaux Arts: The National School of Fine Arts founded in 1648 11am to 5pm 14 rue Bonaparte 75006 - Hotel de Ville: City Hall 9:30am to 6:30pm 3 rue Lobau 75004 - Hotel de Salm, Palais de la Légion d'Honneur 1pm to 6pm 64 rue de Lille 75007 - Banque de France 10am to 6pm 31 rue Croix des Petits Champs 75001 - L'Assemblée Nationale (National Assembly) 9:30am to 6pm 35 quai d'Orsay 75007 Enjoy! And Let us know what you prefered. You can visit the official website here