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.