The façade has the appearance of a fortress with its crenellated towers and sturdy buttresses, although the old stained-glass windows help to soften this austerity. The interior gives an impression of power due to the high vaults and thick pillars. N..

Contains a large number of works of art including a group sculpted by Pompeo Leoni, a Pietà by Morales, an Immaculate Conception by Zurbarán and a statue of the prophet Eliah by Salzillo.