The Tour Saint-Jacques is the starting point for the chemin de Compostelle. From here, the road lead to Tours.
The Tour Saint-Jacques, a Gothic tower, is all that remains of the former church of Saint-Jacques-la-Boucherie.
A statue of Blaise Pascal is located at the base of the tower, commemorating the experiments on atmospheric pressure, though it is debated whether they were performed here or at the church of Saint-Jacques-du-Haut-Pas.
The tower inspired Alexandre Dumas to write the play La tour Saint-Jacques-la-boucherie in 1856.