A few nice Design Gift Ideas images I found:
Smithsonian Institution, East End
Image by Melinda Young Stuart
This building is called, informally, The Castle, but that has nothing to do with its history or use–it is simply a familiar, 20th C. nickname. The structure was designed by James Renwick in the 1850s to house the nascent scientific institution and collection created at Washington for "the increase and diffusion of knowledge" with the bequest of Englishman James Smithson to the young United States government. The venerable building continues to be the headquarters of the world’s largest museum organization. This wing houses the offices of the chief administrator, called "The Secretary". Currently that chair is held by Dr. Wayne Clough, a civil engineer by training. He is the 12th Secretary in the history of the Institution.
About the rose garden:
The Kathrine Dulin Folger Rose Garden, made possible by a generous gift from Mr. and Mrs. Lee M. Folger and the Folger Fund, was designed and installed by the Smithsonian Gardens and dedicated in the fall of 1998. It is a visual centerpiece in front of the Arts and Industries Building to the east of the Smithsonian Castle. This garden provides an engaging space for visitors on their journey around the Smithsonian museums. Visitors stop to smell the various fragrant roses, read the plant name tags to gather ideas for their own gardens, and enjoy the spectacular view.