I've been living near DC for over 12 years now and love it. No matter which sites you decide to see you'll be happy. Should be crowded and the lines can be bothersome but it's worth the effort. It's too bad you're only spending 2 days here because you'll only be able to scratch the surface of all the sites.
Regarding the zoo...normally I wouldn't recommend going there but we have been blessed with four of the cutest baby cheetahs I've ever seen. Seeing them and the Pandas make the trip worth while. Take lots of pictures.
Regarding the zoo...normally I wouldn't recommend going there but we have been blessed with four of the cutest baby cheetahs I've ever seen. Seeing them and the Pandas make the trip worth while. Take lots of pictures.