How am I this late to the party?? I never realized that all the national museums in Washington DC are free! We spent the late afternoon hours running through the National Zoo - and honestly that is all it took. Yes, it's no Brooklyn Zoo...but it doesn't need to be. We had fun looking at the buffalo, and trying to spot the cheetahs - But the best part of the zoo was kept inside because it was too cold out. Despite the wait we had a great time checking out the panda exhibit and would recommend just stopping in for only this in the future - its worth it!