A fine example of Languedoc Gothic with a wide nave (20.25 m) and an imposing vault (23,5m). A square-based, 54 m high octagonal tower houses a 47 bell carillon. Public access is free (232 steps), and offers a breathtaking view of the entire town of Carcassonne.
Richly decorated: seventeenth century tables and lecterns, paintings by Gamelin, Nicolas Mignard and Pierre Subleyras. 15th century rosettes and stained glass windows.