Columbia subject headings:
Architecture--Spain--León--History--21st century--Guidebooks.
León (Spain)--Buildings, structures, etc.--Guidebooks.
Harvard subject headings:
Architecture--Spain--León
Architecture--Spain--León--20th century.
Princeton subject headings:
Architecture--Spain--León--History--20th century--Guidebooks.
Guidebooks.
León (Spain)--Buildings, structures, etc.--Guidebooks.