Columbia subject headings:
Harvard subject headings:
Art, Municipal
Arts--Experimental methods
Happenings (Art)
Installations (Art)--Catalogs.
Public spaces.
Sculpture, Modern--Catalogs.
Princeton subject headings:
Art and society--History--21st century--Catalogs.
Catalogs.
Installations (Art)--21st century--Catalogs.
Outdoor art--21st century--Catalogs.
Public spaces--Pictorial works.
Street art--21st century--Catalogs.