The White House doesn't look all that impressive from this angle.
Around the Lincoln Memorial.
Washington Monument from Lincoln Memorial.
Vietnam Veterans Memorial
I liked the design of the building, so I thought I'd check out Hirshhorn Museum and Sculpture Garden first. I saw a sign saying no photography, I'm not sure if it was just that room or in general, so I only took a picture of the outside area.
Here are some pictures taken around the Smithsonian National Air and Space Museum.
National Museum of Natural History