Standing in their backyard in Cochas Grande, Peru, Katya and Blanca Cantos, hold the fruit of their labor. The gourd at left shows scenes from a potato harvest. The just-started gourd at right will tell the story of an ancestor's epic trek. Josh Cogan/Ralph Rinzler Folklife Archive, Smithsonian Institution hide caption

itoggle caption Josh Cogan/Ralph Rinzler Folklife Archive, Smithsonian Institution

Art of the people: Fill a glass with hope, a butter sculpture crafted by Jim Victor and Marie Pelton. "People don't understand how [the sculpting] is done --€” it's like magic and just appears," Victor says. "But people understand butter." Courtesy of Jim Victor and Marie Pelton hide caption

itoggle caption Courtesy of Jim Victor and Marie Pelton

Adele Block-Bauer, photographed circa 1915, was from a prominent Jewish family in Vienna. IMAGNO/Austrian Archives hide caption

itoggle caption IMAGNO/Austrian Archives

George Caleb Bingham's The Jolly Flatboatmen (1846) became wildly popular after an East Coast art union bought it and started disseminating it as a print. National Gallery of Art hide caption

itoggle caption National Gallery of Art

Boston Public Library President Amy Ryan, left, and Conservation Officer Lauren Shott hold the recovered prints by Albrecht Durer and Rembrandt van Rijn. Courtesy of Boston Public Library hide caption

itoggle caption Courtesy of Boston Public Library

Rekha is one of the many caged prostitutes Mary Ellen Mark came to know as she photographed in the red-light district of Mumbai. Courtesy of Mary Ellen Mark Studio and Library hide caption

itoggle caption Courtesy of Mary Ellen Mark Studio and Library