Église Saint-Ambroise
Located at 71 Boulevard Voltaire, Saint-Ambroise was built between 1863 and 1868, shortly after the construction of the new Boulevard du Prince-Eugène, which was later renamed Boulevard Voltaire. It replaced a church called Notre-Dame de la Procession which was located close to the path of the new street at about the location of the public garden. The church was designed by architect Théodore Ballu.