Francisco Goya’s “Los Caprichos,” a daring etching series from 1797–98, is on display at the National Gallery (50 Vasileos Konstantinou). The 80 prints, a sharp critique of 18th-century Spanish society, tackle themes like superstition and corruption. The exhibition features both the gallery’s complete set of finished prints and Goya’s original sketches, offering a rare look at his creative process and his groundbreaking use of etching and aquatint. Tickets start at 5 euros from nationalgallery.gr.