The Gothic west door contrasts with the Isabelline and highly decorated south door, while the bell-tower is Plateresque and even more profusely decorated! Inside is the superb Capilla de las Calaveras (Chapel of the Skulls), the third chapel on the right. The Isabelline-style Capilla de las Mercedes (Mercy) is enclosed by extraordinary grilles. Note the highly imaginative scene of Eve coming out of Adam's rib.