Tom Murphy, San Francisco, 1948 gelatin silver print The Minor White Archive, Princeton University Art Museum hide caption

itoggle caption The Minor White Archive, Princeton University Art Museum

Neonta Williams (left) shares family letters dating back to 1901 with preservationist Kimberly Peach during the Smithsonian's Save our African American Treasures program at the Birmingham Civil Rights Institute. Peach advises her to use archive-quality polyester sleeves to protect the fragile papers, rather than store them in a zip-lock bag. Debbie Elliott/NPR hide caption

itoggle caption Debbie Elliott/NPR

Zhang Kechun. Under the Abandoned Pier, 2013-2014. Zhang, 34, spent years shooting photos along the Yellow River. Zhang Kechun/Courtesy of Three Shadows +3 Gallery hide caption

itoggle caption Zhang Kechun/Courtesy of Three Shadows +3 Gallery

All folded up and ready to magnify: The Foldscope weighs less than two nickels, is small enough to fit in your back pocket and offers more than 2,000-fold magnification. TED/YouTube hide caption

itoggle caption TED/YouTube

This installation at the Tower of London will ultimately feature 888,246 ceramic poppies, honoring the soldiers from Britain and the British colonies who died in World War I. Rich Preston/NPR hide caption

itoggle caption Rich Preston/NPR

Deaccessioning — the permanent removal of an object from a museum's collection — has been a big issue in Detroit. When the city declared bankruptcy, it had to put all of its assets on the table. Turns out, the most valuable asset was the art collection at the Detroit Institute of Arts. Bill Pugliano/Getty Images hide caption

itoggle caption Bill Pugliano/Getty Images

Sam Van Aken's grafted fruit trees are still quite young, but this artist rendering shows what he expects the "Tree of 40 Fruit" to look like in springtime in a few years. Courtesy of Sam Van Aken hide caption

itoggle caption Courtesy of Sam Van Aken