During my recent trip to Washington DC, this museum was at the top of my list giving my interest in the subject. I was not to be disappointed. My particular favorite was the gems and minerals section which showed the stages from raw stone to polished product. The mammal section was also quite interesting although the animals could have been represented in their natural settings.
The cafe was ridiculously expensive though.
Generally, I would highly recommend!
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.