La Tour CIBC is a 187 m (614 ft) forty-five-storey skyscraper in Montreal, Quebec. With the communications antenna on the roof, the total height is 225 m (738 ft). The International Style office tower was built by Peter Dickinson, Ross, Fish, Duschenes and Barrett and was the city's tallest building from 1962 to 1963. The building holds offices for the Canadian Imperial Bank of Commerce, the corporate law firm Stikeman Elliott, as well as numerous other businesses.
The building is located at 1155 René Lévesque Boulevard West next to Dorchester Square facing the imposing but dwarfed Sun Life Building. Part of the fire-damaged Windsor Hotel was demolished to make room for construction, with the remaining portion being converted to offices in the 1980s.(Wikipedia)