Dalí's "The Hallucinogenic Toreador," completed in 1970, is a repeat image of the Venus de Milo. A double image appearing in the center of this work shows a toreador -- or bullfighter -- and the dying bull. As inspiration for the painting, Dali purportedly saw the toreador in a reproduced image of the Venus de Milo on a box of pencils. The painting includes insights into Dali's career and the Catalan culture.
"Gala Contemplating the Mediterranean Sea," which was painted in 1976, transforms into a portrait of Abraham Lincoln when viewed from a distance. Dali -- who painted it at The St. Regis Hotel in New York, according to The St. Petersburg Times -- used a technique called stereoscopy to create the image. Stereoscopy offsets two 2-D images to give the brain the perception of 3-D depth.
Dali painted "The Sleeping Smoker" -- another stereoscopic work -- in 1972. It includes an angular face of a reclining man, puffing on a cigarette holder. The work of art purportedly was inspired by a Mark Lacroix photo of a man in the same pose, according to The Salvador Dali Society.
Dali painted "Six Virtual Corneas Provisionally Reflected in Six Real Mirrors" in 1972. This piece shows Dali painting his wife Gala in a mirror from both the back and front. The painting -- one of many self-portraits -- can be interpreted as the many ways to view a person or situation.