Okay, people, got a question for you -- who here has been to DC?

Elizabeth is doing a presentation at the National AOTA Conference for occupational therapists (yeah, she's the bomb) on June 9th, and we're going up to DC Sunday and Monday. I'm looking at all the places we can visit, and I was wondering if anyone had some places that HAD to be visited.

Right now I'm checking out all the cool stuff at The Smithsonian, along with this page and this one. I'm overwhelmed! Thanks in advance!