Mikey and I went to DC yesterday to do one museum run and watch SALT. We picked the Natural History Museum (which was packed full of boy scouts) and spent a couple hours in there. We spent about 45 minutes in this little butterfly room where the climate is extremely controlled and hundreds fly around you/on you. It was amazing. Some of the colors of the butterflies were unreal. Neon green and bright blues, pink and yellows.. agh. So pretty. My brother was having a field day taking photos of them.
On the way out, there's a separate room with a giant mirror for people to look for any "hitch hiking butterflies", which I thought was cute.