Columbia subject headings:
Art, Municipal--Washington (State)--Seattle.
Parks--Washington (State)--Seattle.
Playgrounds--Washington (State)--Seattle.
Harvard subject headings:
Art, Municipal--Washington (State)--Seattle.
Parks--Washington (State)--Seattle.
Playgrounds--Washington (State)--Seattle.
Princeton subject headings:
Art, Municipal--Washington (State)--Seattle.
Parks--Washington (State)--Seattle.
Playgrounds--Washington (State)--Seattle.