A soldier stands guard next to Tutankhamen's gold mask inside the Egyptian Museum on Feb. 16. Looters broke into the museum in Cairo's Tahrir Square in late January.
Pedro Ugarte/AFP/Getty Images
By the time Gauguin arrived in the late 1800s, Tahiti had been "thoroughly Christianized and colonized" by the French, says National Gallery curator Mary Morton. Women didn't walk around half-nude — but Gauguin painted them that way anyway. Above, an 1899 depiction of Two Tahitian Women.
The Metropolitan Museum of Art
For 40 years, the Rothko Chapel in Houston has served as a space for personal contemplation, interfaith dialogue and action for human rights. The sanctuary was created by Mark Rothko, who committed suicide one year before the chapel opened.
Hickey Robertson/The Rothko Chapel
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
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.