Smithsonian Natural History Museum in Washington, DC Post author: Post published: Post category:North America / USA / Washington DC After our visit to Foggy Bottom and Georgetown, we spent the remainder of our day at the Smithsonian Museums. We saw the Smithsonian Castle made of red sandstone and then Natural History Museum. The Hope Diamond: Walking on the grass because my feet hurt. You Might Also Like Independence Rock, Wyoming Pack’s Pumpkin Patch in Farmington, Utah Rooftop Views of Washington, DC