A model shows a view of the Crystal Bridges pavilion some museum staff refer to as "the armadillo" because of how its curved, copper bands resemble the animal's shell. John Horner/Crystal Bridges Museum of Art hide caption

itoggle caption John Horner/Crystal Bridges Museum of Art

If The Art Museum were a real museum and not just a book, there would hardly be need for another. At 18 pounds and 922 pages, the expansive book is organized into thematic "galleries," and within those "rooms" dedicated to solo artists, like Picasso. Phaidon hide caption

itoggle caption Phaidon

In a charcoal and pastel version of Dancers at the Barre, Degas tries out a variation on the dancers' head and leg positions.

National Gallery of Canada, Ottawa hide caption

itoggle caption National Gallery of Canada, Ottawa

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