Albert Barnes made a fortune in pharmaceuticals, and spent it acquiring a massive art collection. He specified that his collection — which includes dozens of works by Renoir, Cezanne and Matisse — should stay forever in Lower Merion, just outside Philadelphia. IFC Films hide caption

itoggle caption IFC Films

Gabrielle With A Rose, 1911: Gabrielle Renard was the Renoir family's longtime nanny — and the artist's muse. He painted her hundreds of times. Musee d'Orsay hide caption

itoggle caption Musee d'Orsay

British Museum via the Getty Museum hide caption

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Agnes by Chuck Close is part of the extensive Fisher Collection, which will go on display at the the San Francisco Museum of Modern Art in June. Donald Fisher — founder of the Gap — decided right before his death in 2009 to loan his art collection to the museum, after his plan to build a private museum fell through. Photo: Ian Reeves/Courtesy of the artist and PaceWildenstein hide caption

itoggle caption Photo: Ian Reeves/Courtesy of the artist and PaceWildenstein

Elizabeth Taylor in 1958, with her Cartier ruby and diamond necklace. Photofest hide caption

itoggle caption Photofest

"This is a mother to all of us who left Iraq," AlKarkhi says. "So when you look at it, you look into your mother's eye. The eyes of this woman reflect the eyes of the mothers of everybody who left home." Photo: Walid Jawad hide caption

itoggle caption Photo: Walid Jawad