Prado Museum, Madrid, Spain

"3rd of May, 1808"

Francisco Goya

http://www.artchive.com/artchive/G/goya/may_3rd.jpg.html

"Las Meninas"

Diego Valasquez

http://www.artchive.com/meninas.htm

"Garden of Earthly Delights"

Bosch, Hieronymus

http://www.museodelprado.es/en/ingles/collection/on-line-gallery/on-line-gallery/obra/the-garden-of-earthly-delights/

"Charles IV of Spain and his Family"

Francisco de Goya

http://encarta.msn.com/media_121618660_761575057_-1_1/the_family_of_charles_iv_by_goya.html