Looking for some suggestions. Next month I will be in the DC area for a week for some RTCM and NSARC committee meetings, Arlington for the most part. Normally, if I have a free day, I do some museums, etc. I have a free day of sorts, but have to meet someone at the Pentagon for lunch, so don't have the whole day to do stuff. Been to Arlington Cemetery a few times, don't need to do that again. Looking for things to do in the area in morning before I have to be at the Pentagon (11:30) and then later in the afternoon. Mind you, I can always work on the damn computer in the hotel room, but... <~> On foot, no car, just Metro.

Suggestions welcome. TIA