The Cathedral of Saint Mary of Bayonne is the dominant building of the old town — a magnificent Gothic structure that rises above the narrow medieval streets with authority. Work began in the 13th century, and the cathedral draws on French Gothic style, particularly Soissons, more than on any Spanish or Basque influence. The result is one of the finest Gothic churches in southwest France.
The interior is impressively tall and spare, with good stained glass in the choir and a series of chapels around the nave. The 13th-century Gothic cloister, on the south side, is one of the best-preserved in France — a calm, arcaded garden that makes a welcome contrast to the busy streets outside. Entry to the cathedral is free; the cloister may require a small fee during peak season.