Columbia subject headings:
Architecture--Italy--Rome--History--20th century.
Architecture--Italy--Rome--History--21st century.
Harvard subject headings:
Architecture, Modern--21st century
Architecture--Italy--Rome--20th century.
Architecture--Italy--Rome--21st century.
Architecture--Italy--Rome--History--20th century
Architecture--Italy--Rome--History--21st century.
Architecture--Italy--Rome--History.
Princeton subject headings:
Architecture--Italy--Rome--History--21st century.
Rome (Italy)--Buildings, structures, etc.