Although temporarily closed, the Arts and Industries Building (AIB) is the Smithsonian’s second oldest building and a national hub for creative exchange between ideas and objects from our past and our future. AIB opened in 1881 as the country’s first U.S. National Museum, an architectural icon in the heart of the National Mall. Its soaring halls introduced millions of Americans to wonders about to change the world—Edison’s lightbulb, the first telephone, Apollo rockets.