Le louche refers to the transformation that happens when water is added to absinthe, turning the liquor from a deep green to a milky, iridescent shade. At left, a classic pour. At right, an absinthe glass fitted with a brouilleur, a device that holds the ice and lets water slowly drip down. Courtesy of Scott MacDonald hide caption

itoggle caption Courtesy of Scott MacDonald

The Ogden Museum of Southern Art's "The Rising" exhibition includes portraits (by photographer Jonathan Traviesa) of the day laborers who helped rebuild New Orleans after Hurricane Katrina. Jonathan Traviesa/Courtesy of the Ogden Museum of Southern Art hide caption

itoggle caption Jonathan Traviesa/Courtesy of the Ogden Museum of Southern Art

When the reservations were established and peace made between the Apsáalooke and the Lakota, there were frequent visits between the tribes. The result was that Lakota warbonnets, pipebags and even pipes were placed in Crow hands. Jenae Neeson/Courtesy of the Brinton Museum hide caption

itoggle caption Jenae Neeson/Courtesy of the Brinton Museum

Weaving is only the first step. From the weaver the hat passes through the hands of a series of artisans with Hemingway-esque titles: the rematador, the cortador, the apeleador and the planchador. Roff Smith for NPR hide caption

itoggle caption Roff Smith for NPR

The Tulane City Center helped design and build New Orleans' Grow Dat Youth Farm, which employs local, disadvantaged high school students and teaches them about urban agriculture. Will Crocker/Courtesy of Tulane University hide caption

itoggle caption Will Crocker/Courtesy of Tulane University

Sultan 'Ali 'Adil Shah II Slays a Tiger (ca. 1660) is part of the Metropolitan Museum of Art's critically acclaimed Sultans of Deccan India, 1500-1700 Opulence and Fantasy exhibition. The Ashmolean Museum, Oxford. Lent by Howard Hodgkin./Courtesy of the Metropolitan Museum of Art hide caption

itoggle caption The Ashmolean Museum, Oxford. Lent by Howard Hodgkin./Courtesy of the Metropolitan Museum of Art

Fibers from the fique plant, dyed with natural pigments by artist Susana Mejia, are part of the Waterweavers exhibit. In the photo above, the fibers hang to dry in the Amazon jungle. Jorge Montoya hide caption

itoggle caption Jorge Montoya

Demonstrators protested the death of Michael Brown on last summer in Ferguson, Mo., even as police sprayed pepper spray, shot smoke, gas and flash grenades. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

This gargantuan beauty was built during the 1999 Delaware State News Sandcastle Contest. The castle was lost all too soon in a tragic high-tide accident. Grant L. Gursky/Associated Press hide caption

itoggle caption Grant L. Gursky/Associated Press

Parsons School of Design graduate Lucy Jones created Seated Design, a collection of clothing for people who use wheelchairs. The clothes include extra fabric at the elbows for greater mobility. Courtesy of Lucy Jones hide caption

itoggle caption Courtesy of Lucy Jones

The hand-colored photo, titled "Reclining young lady," is of Stella Osarhiere Gbinigie when she was 16. Solomon Osagie Alonge/Franko Khoury/National Museum of African Art hide caption

itoggle caption Solomon Osagie Alonge/Franko Khoury/National Museum of African Art

"Winter is better. You can't get nothing on a summer day. You can't get no help in the summer. I don't have no place to stay, but I sleep out here sometimes on the streets. I try to make a little money to buy me a little something to eat because I don't like eating out of trash cans. That makes me sick." Joe Rubino/Close Up Baltimore hide caption

itoggle caption Joe Rubino/Close Up Baltimore

Chiharu Shiota takes over an entire townhouse for her 2013 work Trace of Memory. It's one of the many unusual installations at The Mattress Factory in Pittsburgh. Courtesy of The Mattress Factory hide caption

itoggle caption Courtesy of The Mattress Factory

Caillebotte's 1875 painting The Floor Scrapers was rejected by the elite Salon, but it was the work that launched his career. RMN-Grand Palais/Art Resour/Courtesy National Gallery of Art hide caption

itoggle caption RMN-Grand Palais/Art Resour/Courtesy National Gallery of Art