Columbia subject headings:
Architecture--Spain--Barcelona--History--20th century.
City planning--Spain--Barcelona--History--20th century.
Eixample (Barcelona, Spain)
Harvard subject headings:
Architecture--Spain--Barcelona--History--19th century.
Architecture--Spain--Barcelona--History.
Barcelona (Spain)--Buildings, structures, etc.
Cerdá, Ildefonso, 1815-1876.
City planning--Spain--Barcelona--History--19th century.
Eixample (Barcelona, Spain)--Buildings, structures, etc.
Princeton subject headings: