Many of Degas' nudes have their backs turned to the viewer. Above, Degas' pastel work, After the Bath, Woman Drying Her Neck, 1886-95. Photo Musee d'Orsay/rmn/Museum of Fine Arts, Boston hide caption

itoggle caption Photo Musee d'Orsay/rmn/Museum of Fine Arts, Boston

The Asia Series is Bob Dylan's first exhibit in New York.

William Claxton/AP hide caption

itoggle caption William Claxton/AP

Language drives Johnson's art since her illness, as depicted in her piece called Enthusiastic, created in 2009.

Courtesy of Walters Art Museum hide caption

itoggle caption Courtesy of Walters Art Museum

These two paintings were up for auction in Hong Kong in February. Art auctions produce eye-popping sales figures in China, though critics say there is a widespread problem with fakes.

Vincent Yu/AP hide caption

itoggle caption Vincent Yu/AP

The view from Madonna's former room at the Chelsea Hotel, where she lived after coming to New York in the early 1980s. Timothy A. Clary/AFP/Getty Images hide caption

itoggle caption Timothy A. Clary/AFP/Getty Images

Made of glazed stoneware, Dora De Lario's Mother and Child (1968) is part of a collection of works that reflect on the history of Mexican-American artists in Southern California. Autry National Center hide caption

itoggle caption Autry National Center
Tom Crane/Pennsylvania Academy of the Fine Arts

By 1985, Warhol's style had evolved substantially; on this untitled headline piece, he collaborated with Keith Haring. National Gallery of Art hide caption

itoggle caption National Gallery of Art

In 1992, Lesage started an embroidery school to pass on to a new generation the techniques of an art form threatened by mass-produced fashion. Olivier Saillant/Maison Lesage hide caption

itoggle caption Olivier Saillant/Maison Lesage

Man Ray Portrait of Lee Miller - Flying Head, c. 1930 Paris Vintage gelatin silver print Lee Miller Archives hide caption

itoggle caption Lee Miller Archives