Église Notre-Dame-de-Bonne-Nouvelle

A Merovingian funerary basilica was built on this site around the 6th and 7th centuries and renovated in the Carolingian period. The Royal Priory of Saint-Martin-des-Champs, Cluny's third daughter, was founded in 1060 and a new building was built on this presumed site of a miracle by Saint Martin. The original plan of the choir probably inspired that of the Basilica of Saint-Denis built a few years later, the church of the Conservatory would constitute the oldest testimony of Parisian Gothic. The abbey was declared a national property in 1790 and since 1798 has housed the new Conservatory of Arts and Crafts created by Abbot Gregory in 1794, whose former abbey church, abandoned for worship, serves as an exhibition room for its museum. The complex was largely refurbished under the July Monarchy and the Second Empire, under the direction of the architect Léon Vaudoyer. The Foucault pendulum has been installed in the choir.

"Temple of the Hymen and Fidelity" in 1795, the church was returned to worship in 1802. It was restored in the first half of the 19th century (in 1823 and again in 1843). Altarpiece of the main altar by Simon Vouet and Jacques Sarrazin.

Work began in 1629 at the initiative of Louis XIII who wished to thank the Blessed Virgin for her military victories. This building, created by Pierre Le Muet for the Augustins déchaussés who entrusted him with its construction: it was very slow, due to a lack of funds, and continued with Sébastien Bruand, R. Boudin, then Gabriel Le Duc (1663) until 1740 when it was finished by Cartaud (façade).
During the Revolution, the church, deprived of its religious members, became the headquarters of the National Lottery and then the Stock Exchange under the Directory. It was restored to worship in 1802, then erected as a basilica by Pope Pius XI in 1927. A very important devotion to the Immaculate Heart of the Blessed Virgin Mary was developed by the creation of an Archconfraternity in the 19th century by Father Desgenettes, parish priest.