In the Triangle group are to be found: Department of Commerce Building, York & Sawyer, architects; Department of Labor and Interstate Commerce Commission Building, Arthur Brown, architect; Post Office Department Building, Delano & Aldrich, architects; Department of Justice Building, Zantzinger, Borie & Medary, architects; Internal Revenue Building, Louis Simon, architect; National Archives Building, John Russell Pope, architect; Federal Trade Commission (Apex) Building, Bennett, Parsons & Frost, architects.

THE TRIANGLE GROUP OF PUBLIC BUILDINGS ALONG CONSTITUTION AVENUE

THE NATIONAL GALLERY OF ART

THE NATIONAL ARCHIVES BUILDING

THE MAKERS OF THE CONSTITUTION