Witches Flight (1797-1798) Museo del Prado, Madrid | artwork by Francisco Goya

Witches Flight (1797-1798) Museo del Prado, Madrid | artwork by Francisco Goya

Danaë with Nursemaid (1553–1554), oil on canvas, Museo del Prado, Madrid | artwork by Titian

Danaë with Nursemaid (1553–1554), oil on canvas, Museo del Prado, Madrid | artwork by Titian

The Immaculate Conception of the Venerable Ones, or of Soult (1678), oil on canvas, Prado Museum, Madrid | artwork by Bartolomé Esteban Murillo

The Immaculate Conception of the Venerable Ones, or of Soult (1678), oil on canvas, Prado Museum, Madrid | artwork by Bartolomé Esteban Murillo

Mars Resting (1639-1641), oil on canvas, Prado Museum, Madrid | artwork by Diego Velázquez

Mars Resting (1639-1641), oil on canvas, Prado Museum, Madrid | artwork by Diego Velázquez

The Three Graces (c. 1635), oil on canvas, Prado Museum, Madrid | artwork by Peter Paul Rubens

The Three Graces (c. 1635), oil on canvas, Prado Museum, Madrid | artwork by Peter Paul Rubens

Adam and Eve (1507), Museo del Prado, Madrid | artwork by Albrecht Dürer

Adam and Eve (1507), Museo del Prado, Madrid | artwork by Albrecht Dürer

David and Goliath (1600), oil on canvas, Prado Museum, Madrid | artwork by Caravaggio

David and Goliath (1600), oil on canvas, Prado Museum, Madrid | artwork by Caravaggio