Eglise Saint-Sulpice near the Saint-Sulpice metro station. Construction of this church, which replaced a 13th-century church, began in 1646 and was mostly complete a century later. As you enter the church, on the right side you’ll see celebrated frescoes by Eugène Delacroix.
If you need sustenance, exit the church and turn to the right, stopping for a coffee at 2. Café de la Mairie (8, Place Saint-Sulpice), which has chairs that face the historic and famous Saint-Sulpice fountain, built in the center of the square between 1844 and 1848 and designed by the architect Louis Visconti, who also designed Napoleon’s tomb. This is a popular café in the neighborhood, and it has the best view.