The Pentagon is the headquarters of the United States Department of Defense.
The Navy Annex was an office building situated in Arlington County.
The United States Institute of Peace Headquarters resides on the northwest corner of the National Mall.
The American Institute of Pharmacy Building, designed by architects John Russell Pope and George A. Fuller Company.
An iconic example of neoclassical architecture housing the National Academy of Sciences.
The United States Public Health Service Building is a significant architectural landmark located in Washington, D.C.