Columbia subject headings:
Architecture--France--Bordeaux (Nouvelle-Aquitaine)
Bordeaux (Nouvelle-Aquitaine, France)--Buildings, structures, etc.
Gates--France--Bordeaux (Nouvelle-Aquitaine)
Towers--France--Bordeaux (Nouvelle-Aquitaine)
Harvard subject headings:
Princeton subject headings:
Architecture--France--Bordeaux (Aquitaine).
Bordeaux (Nouvelle-Aquitaine, France)--Buildings, structures, etc.
Gates--France--Bordeaux (Aquitaine).
Towers--France--Bordeaux (Aquitaine).