Diana and Actaeon (1556-59): Italian painter Titian depicts Actaeon, a mortal hunter, who accidentally encounters Diana, goddess of the hunt, as she bathes. Click "Enlarge" to see the full painting. Minneapolis Institute of Arts hide caption

itoggle caption Minneapolis Institute of Arts

When the National Portrait Gallery removed a work after pressure from activists and politicians, a project called the Museum of Censored Art set up shop right outside the museum's doors. Erin Schwartz/NPR hide caption

itoggle caption Erin Schwartz/NPR

The Carnegie Museum of Art in Pittsburgh has put up Pierre Auguste Renoir's Bathers with Crab (c. 1890-1899) on a Steelers victory in Super Bowl XLV. Courtesy Carnegie Museum of Art hide caption

itoggle caption Courtesy Carnegie Museum of Art

Web page from the Google Art Project. Google hide caption

itoggle caption Google

Portrait of a Boy is one of three Rembrandt paintings in Simon's collection. If Simon had had his way, there would have been four; the Metropolitan Museum of Art outbid him for Aristotle Contemplating the Bust of Homer. The Norton Simon Foundation hide caption

itoggle caption The Norton Simon Foundation

CC4 Nocagions, currently on display at the the Museum of Contemporary Art in Los Angeles, was conceived in 1973 by Brazilian artists Helio Oiticica and Neville D'Almeida. Visitors are invited to swim in the pool, and the museum even sells $16 disposable bathing suits in case you've come unprepared. Iwan Baan hide caption

itoggle caption Iwan Baan

Wafaa Bilal implanted a webcam in the back of his head. The camera is taking a picture a minute for a year, and the images are being streamed live at Mathaf, the Arab Museum of Modern Art. Wafaa Bilal hide caption

itoggle caption Wafaa Bilal

The Ghent Altarpiece, or Adoration of the Mystic Lamb, completed in 1432 by Jan van Eyck, is considered the first great painting of the Renaissance. Click here to see a larger version of the piece. Hubert Eyck/The Bridgeman Art Library/Getty Images hide caption

itoggle caption Hubert Eyck/The Bridgeman Art Library/Getty Images