The aisles, the sides of which form a perfect square, are rhythmically marked by twenty-six ogival arches, supported by 228 smooth, inlaid, coupled columns. The columns’ bases bear motifs of stylised leaves, rosettes, lion’s paws, beasts, men and animals in groups, frogs and lizards. Capitals rest on the columns, decorated and historiated with biblical episodes, followed by scenes from the New Testament and genre scenes, as well as those inspired by medieval symbolism and bestiaries. The sculptural work also alternates figurative decorations with mythological, botanical, symbolic and allegorical themes and floral elements.