Columbia subject headings:
Architecture, Modern--20th century.
Architecture--Environmental aspects.
Landscape architecture.
Landscape design.
Outdoor sculpture.
Public sculpture.
Harvard subject headings:
Architecture, Modern--21st century
Architecture--Environmental aspects
Landscape architecture
Landscape design.
Outdoor sculpture.
Public sculpture.
Princeton subject headings:
Architecture, Modern--20th century.
Architecture--Environmental aspects.
Landscape architecture.
Landscape design.