The courtyard of Ecole of the Beaux-Arts is both fascinating and slightly eerie, yet a beautiful place. This ancient cemetery was historically used for plague victim burials, although little speaks to it in the present. The building around it dates back to the 14th century. It's a great starting point for your sightseeing tour.
Address: Aître Saint-Maclou, 186 Rue Martainville, Rouen