The Museo Thyssen-Bornemisza is a must-visit museum for art enthusiasts. Located near the Retiro subway station, it houses an extensive collection of European art from the 13th to the 20th century. The museum offers free admission on Mondays from 12:00 PM to 4:00 PM, allowing visitors to admire works by artists like Van Gogh, Monet, and Rembrandt. With its diverse collection of paintings, sculptures, and decorative arts, the museum provides a comprehensive overview of Western art history.