The Museo Nacional Thyssen-Bornemisza is another prominent museum situated in El Retiro Park. It showcases a diverse collection of art, ranging from medieval to contemporary works. Visitors can admire masterpieces by artists like Van Gogh, Monet, and Picasso. The museum offers free entry on Mondays from 12 pm to 4 pm, providing an opportunity for art enthusiasts to immerse themselves in the world of fine art without spending a dime.