Columbia subject headings:
Harvard subject headings:
Gardens--Greece--History.
Gardens--Rome.
Gardens--Symbolic aspects--Greece--History.
Gardens--Symbolic aspects--Rome.
Greece--Antiquities.
Rome--Antiquities.
Princeton subject headings:
Gardens--Greece--History.
Gardens--Rome.
Gardens--Symbolic aspects--Greece--History.
Gardens--Symbolic aspects--Rome.
Greece--Antiquities.
Rome--Antiquities.