Columbia subject headings:
Harvard subject headings:
Architecture, Modern--19th century--Argentina--Buenos Aires.
Architecture--Argentina--Buenos Aires.
Avenida de Mayo (Buenos Aires, Argentina)
Buenos Aires (Argentina)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Argentina--Buenos Aires--Conservation and restoration.
Architecture--Argentina--Buenos Aires--Designs and plans.
Avenida de Mayo (Buenos Aires, Argentina)
Buenos Aires (Argentina)--Buildings, structures, etc.
Streets--Argentina--Buenos Aires.