My 17 y/o daughter, 13 y/o son and I will be at the NIH the last week of July. We are staying at the Children's Inn at the NIH and will not have a car. We have medical appointments scheduled from 8am until 4 pm everyday. I think we will need some distractions from the medical environment in the evenings. Can anyone suggest things to do and places to eat that are a short metro ride away? They need to be within a short walking distance of a metro top (2-3 blocks is probably max the daughter will be able to handle comfotably). Thanks for you help!