Columbia subject headings:
Architecture--Portugal--Lisbon--History--21st century.
Lisbon (Portugal)--Buildings, structures, etc.
Public buildings--Portugal--Lisbon.
Harvard subject headings:
Architecture, Modern--21st century
Lisbon (Portugal)--Buildings, structures, etc.
Public buildings--Portugal--Lisbon.
Princeton subject headings:
Architecture, Modern--21th century--Portugal--Lisbon.
Lisbon (Portugal)--Buildings, structures, etc.
Public buildings--Portugal--Lisbon.