This snap by andertho is indisputably a picture from the National Portrait Gallery. But have you noticed how everyone refers to that building — the Old Patent Office Building and the two museums it contains — as the National Portrait Gallery? Have you ever heard anyone refer to it casually as the Smithsonian American Art Museum? Because half of it is, in fact, the Smithsonian American Art Museum. Have you ever heard anyone call it The Donald W. Reynolds Center for American Art and Portraiture? I hope not, because that’s awfully ungainly. But it’s never “the American Art Museum” or “the American/Portrait Museum” or even “the Old Patent Office Building” — people call it the National Portrait Gallery. Full disclosure: I wrote a blog for the Smithsonian American Art Museum around when it reopened at that site — before any time I noticed people using “National Portrait Gallery” as shorthand for both institutions.