The austere facade of the 15th-century Eglise Saint-Jean-Baptiste , where the wedding was celebrated , doesn 't prepare you for the characteristic Basque carved oak galleries to separate the various classes of worshippers on three sides of a single nave , with polychrome wooden vaulting and a three-tiered gilded-and-crimson Baroque altar .
The facade of the Eglise Saint-Jean-Baptiste sparkles with golden trimming and ornate carvings as a symbol of the Church 's vast wealth .