If we're to include demolished high-rises, then we could also add the old Toronto Star Building: (built 1929, demolished 1972 for First Canadian Place)
https://commons.wikimedia.org/wiki/F...rontoStar3.jpg
Temple Building - the city's tallest when it was built in 1896. Demolished 1970 for a nondescript office tower:
https://www.torontopubliclibrary.ca/...ew=grid&Erp=20
Beard Building - only 7 stories, but it was also the city's tallest upon completion in 1984, and considered Toronto's first skyscraper. It was demolished by 1935:
https://en.wikipedia.org/wiki/Beard_Building
Board of Trade Building. Built 1892, demolished 1958:
https://en.wikipedia.org/wiki/Toront...Trade_Building
St. George Mansions. Built 1904, demolished 1960s(?):
https://www.blogto.com/city/2014/01/...ment_building/
Ford Hotel. Built 1928, demolished 1973:
https://www.blogto.com/city/2012/11/...ll_from_grace/
Dominion Building. Can't find the construction date, but it was destroyed by fire in 1977:
https://acotoronto.ca/show_building.php?BuildingID=160
Eaton's Factory Complex. Multiple buildings either torn down for the Eaton Centre in 1973 or subsequently destroyed by fire in 1977:
http://www.myseumoftoronto.com/progr...he-innovators/
https://en.wikipedia.org/wiki/Eaton%27s_Annex