First Canadian Place (originally First Bank Building) is a skyscraper in the financial district of Toronto, Ontario, at the northwest corner of King and Bay streets, and is the location of the Toronto operational head office of the Bank of Montreal. At 298 m (978 ft), it is Canada's tallest skyscraper and the 15th tallest building in North America to structural top (spires) and 9th highest to the roof top, and the 105th tallest in the world. It is the third tallest free-standing structure in Canada, after CN Tower (also in Toronto) and the Inco Superstack chimney in Sudbury, Ontario. The building is owned by Brookfield Office Properties, putting it in co-ownership with the neighbouring Exchange Tower and Bay Adelaide Centre as well as various other office spaces across Downtown Toronto.

First Canadian Place was the 6th tallest building in the world to structural top (currently 103rd) and the tallest building overall outside of Chicago and New York when built in 1975. It was also the tallest building in the Commonwealth of Nations until the completion of the Petronas Towers in Kuala Lumpur, Malaysia, in 1998. The Bank of Montreal "M-bar" logo at the top of the building was the highest sign in the world from 1975 until overtaken by the sign atop CITIC Plaza in 1997. The roof is still the location of a number of antennas used for radio and television broadcasting. The structure contains 29 elevators, and is one of only a few buildings in the world that uses the double-decked variety, and is connected to the underground PATH system.

en.wikipedia.org/wiki/First_Canadian_Place