A nice spot for a meal is the cafe inside the American Indian Museum. It's not terribly far from the Capitol on the south side of the Mall. I could eat the fry bread all day. One of my favorite things to do while I'm there is to walk around the tidal basin, find a bench, and sit and take everything in. It's sort of peaceful in its own way. And Patrick, since you are staying up near the Capitol, make sure you hit the Library of Congress. It's a stunning building on the inside. Then there is a tunnel that connects to the Capitol so you don't have to go through security again. I'm also a fan of the Supreme Court building and they offer free lectures in the courtroom throughout the day. If you didn't secure a tour of the Capital through your member of Congress, you may be able to get on a walk-up tour, but that is more difficult during the busy season. Be prepared to go through security screening no matter where you go. The museums are pretty simple; almost like going to a game at Miller Park. Government buildings take a bit longer. Lastly, the only place I've been to that I would recommend avoiding at all costs is the natural history museum. Personally, I thought it wasn't that much different than the Field Museum in Chicago and it was PACKED, more than any other museum I have gone to. But, that is my own personal take on it.