@SIGardens have always had a special place in our history. It all started in the 1850's with @Smithsonian Park. https://t.co/d9pPM8xcos pic.twitter.com/1dZ43WZVm1
— Smithsonian Archives (@SmithsonianArch) May 31, 2018
Perhaps the only photograph of Smithsonian grounds I have enjoyed more is one showing bison or buffalo roaming the Castle grounds.