Columbia subject headings:
Historic buildings--Washington (D.C.)
Legislators--United States--Pictorial works.
United States Capitol (Washington, D.C.)--History.
United States Capitol (Washington, D.C.)--Pictorial works.
United States. Congress--History.
United States. Congress--Pictorial works.
Washington (D.C.)--Buildings, structures, etc.
Washington (D.C.)--Buildings, structures, etc.--Pictorial works.
Harvard subject headings:
Legislators--United States--Pictorial works.
United States Capitol (Washington, D.C.)--Pictorial works.
United States. Congress--Pictorial works.
Washington (D.C.)--Buildings, structures, etc.--Pictorial works.
Princeton subject headings:
Historic buildings--Washington (D.C.)
United States Capitol (Washington, D.C.)--History.
United States. Congress--History.
Washington (D.C.)--Buildings, structures, etc.