Architectural model in colour, Competition entry 429 , City Hall and Square Competition, Toronto, 1958, by D.R. McMullin of the United States. Two low rectangular structures with plaza between. Roof with many points and openings.
McMullin, D. R.
Toronto Public Library's Digital Archive: http://www.torontopubliclibrary.ca/detail.jsp?Entt=RDMDC-CITYHALL-A-R6-11&R=DC-CITYHALL-A-R6-11
Nathan Philips Square (Toronto, Ont.)
Downtown (Toronto, Ont.)