Columbia subject headings:
Interior decoration--Spain--Barcelona.
Nouvel, Jean, 1945-
Skyscrapers--Spain--Barcelona.
Torre Agbar (Barcelona, Spain)
Harvard subject headings:
Interior architecture.
Nouvel, Jean, 1945-
Office buildings--Spain--Barcelona.
Tall buildings--Spain--Barcelona.
Princeton subject headings:
Barcelona (Spain)--Buildings, structures, etc.
Interior architecture--Spain--Barcelona.
Torre Agbar (Barcelona, Spain)