He proposed the creation of a vast urban park between place Saint-Jean and the basilique Notre-Dame de Fourvière.

The esplanade of Fourvière, created by the engineer Joannès Blanchon between 1880 and 1896, [1] connects the Passerelle des Quatre-vents, the Loyasse fort and the Loyasse cemetery, the Jardin de la Visitation, the Parc archéologique and the Jardin du Rosaire (rose garden).

The "chemin de la Visitation", is a 2-kilometre (1.2 mi) path that connects rue Pauline Jaricot to the upper part of Parc archéologique.

The cloister, convent of the Visitation Sainte Marie de Fourvière is one of the first works of Pierre-Marie Bossan.

The basilica and the gardens below, today called the Jardin du Rosaire, were designed by the architect Pierre Bossan in the second half of the 19th century.

This is also the location of the house of Bréda, named Maison de Lorette [fr] after being purchased by Pauline Jaricot, and the Chapelle Sainte-Philomène, which was constructed by Antoine-Marie Chenavard in 1839.