Charles III commissioned Juan de Villanueva to build a pleasure pavilion in the Prince's Garden for the future Charles IV. Exquisite decor makes this miniature palace a veritable jewel: painted ceilings in the Pompeiian style by Maella et Vicente Gómez, silk wall hangings, paintings by Luca Giordano, chandeliers, porcelain and a fine dining room in marble and mahogany.