Madrid, SpainThe world's finest collection of European Old Masters — Velázquez's Las Meninas, Goya's Black Paintings (Saturno devorando a su hijo), El Bosco's The Garden of Earthly Delights, Titian's complete Habsburg portraits. A top-ten museum of the world; free entry Monday–Saturday 6–8pm and Sunday 5–7pm.
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Spain's museum of modern and contemporary art — Picasso's Guernica (the 20th century's most powerful anti-war painting), Dalí's Great Masturbator, Miró's Catalan Peasant series. The 1992 Nouvel extension and the rooftop terrace are architectural highlights. Free Monday evenings and Sunday afternoons.
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Madrid's most spectacular boulevard — a mile-long avenue of early 20th-century Beaux Arts and Art Deco skyscrapers built between 1910 and 1930, nicknamed the 'Spanish Broadway' for its concentration of theatres. The Edificio Metrópolis with its winged victory sculpture at the Alcalá junction is the definitive Madrid postcard.