Columbia subject headings:
Plazas--France--Paris--History.
Public spaces--France--Paris.
Harvard subject headings:
Paris (France)--Buildings, structures, etc.
Plazas--France--Paris--History.
Plazas--France--Paris.
Public spaces--France--Paris.
Princeton subject headings:
City planning--France--Paris--History--19th century.
City planning--France--Paris--History--20th century.
Paris (France)--Buildings, structures, etc.
Plazas--France--Paris.