Columbia subject headings:
Aqueducts.
Bridges--France--Nîmes.
Nîmes (France)--Antiquities.
Harvard subject headings:
Aqueducts
Nîmes (France)--Antiquities.
Pont du Gard (France)
Princeton subject headings:
Aqueducts.
Nîmes (France)--Antiquities.
Pont du Gard (Nîmes, France)