Columbia subject headings:
Architecture--Designs and plans--Switzerland--Basel--History--21st century.
Architecture--Switzerland--Basel--History--21st century--Designs and plans.
Architecture--Switzerland--Basel--History--21st century.
Basel (Switzerland)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Switzerland--Basel--21st century--Guidebooks.
Architecture--Switzrland--Basel--20th century--Guidebooks.
Basel (Switzerland)--Buildings, structures, etc.--Guidebooks.
Princeton subject headings: