View from the roof of the Smithsonian This photograph was taken from the roof of the Smithsonian Castle around 1886. The small building on the left between the Smithsonian and the Washington Monument is the old Department of Agriculture Building, with its formal garden to the right spreading out across the Mall. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=39&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=William+Henry+Jackson">William Henry Jackson</a> Smithsonian Institution Archives. <a href="http://siris-sihistory.si.edu/ipac20/ipac.jsp?&amp;profile=all&amp;source=~!sichronology&amp;uri=full=3100001~!11647~!0#focus">View original.</a> 1886 <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=38&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=1860-1889">1860-1889</a>