One of the negatives discovered by Rick Norsigian. Courtesy Rick Norsigian hide caption

itoggle caption Courtesy Rick Norsigian

The restored version of "The Gross Clinic," above, is characterized by darker hues that bring the image closer to what Thomas Eakins originally painted in 1875. The Philadelphia Museum of Art hide caption

itoggle caption The Philadelphia Museum of Art

A self-portrait by Rembrandt, valued at $36 million, was taken from the Swedish National Museum in 2000. Robert Wittman, founder of the FBI's Art Crime Team, went undercover — as an authenticator for an Eastern European mob group — to recover it. Swedish National Museum hide caption

itoggle caption Swedish National Museum
Collection of Steve Spielberg

Claude Monet bought his house in Giverny seven years after he first started renting it. He worked hard to create the gardens, later featured in his paintings, around his home. Fondation Claude Monet hide caption

itoggle caption Fondation Claude Monet

Veteran Starlyn Lara poses upright in bed, in a photograph for Jennifer Karady's fine-art series. Jennifer Karady hide caption

itoggle caption Jennifer Karady
Claude Monet

Boudin painted his Personnages sur la plage de Trouville in 1865, about 10 years after befriending Monet. Henri Brauner/Musee Eugène Boudin, Honfleur hide caption

itoggle caption Henri Brauner/Musee Eugène Boudin, Honfleur

Gods On High ... Or Gods Are High? A curious piece of fruit in the bottom right-hand corner of Sandro Botticelli's Venus and Mars has caught the eye of art historian David Bellingham. He suspects that the 15th century master depicted the deities lounging with the hallucinogenic datura stramonium, also known as "poor man's acid." Get a closer look. Sandro Botticelli hide caption

itoggle caption Sandro Botticelli