Columbia subject headings:
Digital water pavilion.
Expo (International Exhibitions Bureau) (2008 : Zaragoza, Spain)--Buildings.
Visitors' centers--Spain--Zaragoza--Designs and plans.
Harvard subject headings:
Exhibition buildings--Spain--Zaragoza--Designs and plans.
Zaragoza (Spain)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Spain--Zaragoza.
Exhibition buildings--Spain--Zaragoza.
Exposición Internacional de Zaragoza (2008)
Water and architecture--Spain--Zaragoza.