A late-Gothic masterpiece, this church sits across Rue de la République behind the cathedral and bears testimony to the wild excesses of Flamboyant architecture. Take time to examine the central and left-hand portals of the main facade, covered with little bronze lion heads and pagan engravings. Inside, note the 16th-century organ, with its Renaissance wood carving, and the fine marble columns.
3 pl. Barthélémy, Rouen, 76000, France