A few pictures:

One night, we went to see the Lincoln Memorial, and the other war memorials:

The first morning, I followed tripadvisor recommendations, we started with the Newseum because it opens earlier. It was interesting, but maybe not worth limited time compared to Smithsonian museums:

The Air and Space Museum was next, and fantastic (follow the link for many many more pictures):

The next morning, we went to the bureau of engraving and printing:

Right after, we went to the museum of American History:

they had a google rack, cool!

The next day, we started with the library of congress. It's beautiful inside, the guided tour was well worth it, and the museums inside are worth the time if you have it:

We however ducked out of the library a bit early to get to the Capitol for our scheduled guided tours. We even got tickets to see the parliament (not in session) and the senate (in session, but nothing happening when we were there). No pictures allowed there though:

After the capitol, I went back to the smithsonian air and space museum for the 3rd time, since I was still not even close to be finished.

The next 3 days, I was at LISA, attending and presenting.

Saturday morning, we went to the Jefferson Memorial before going to Mount Vernon:

We drove to Mt Vernon next, where Jefferson used to live, beautiful grounds:

this is where the slaves used to stay

a few pictures from the museum on site

From Mt Vernon, we drove to the Arlington Cemetary for a few hours, which also has beautiful grounds:

It looks very nice in autumn

the walk by the unknown soldier is still just as impressive

Kennedy's Tomb

Good views from up there:

We were left we just 1h20 for a very quick visit of the Natural History Museum, which was worth more, but that's better than nothing:

great picture!

Sunday morning, our last day, we started by going to the Washington National Cathedral. OMG is it impressive, it's absolutely huge. Unfortunately we arrived during a service, and couldn't really stick around for a long time to visit the top after the service was over, but we visited the crypt underneath and that one along was worth the visit:

down to the crypt

From there, last but certainly not least, we went directly to the Smithsonian Air and Space Museum Udvar-Hazy by Washington Dulles Airport, which is probably the best such museum in the world (click on the link for a page dedicated to it.

Right after the museum visit, we got back to the other side of the terminal for the last flight out home, and this concluded a great 8 days in DC.