Canada's future tallest building, The One, has broken ground in downtown Toronto. Designed by Foster + Partners, the 85-story building will become the country's first supertall skyscraper (commonly defined as taller than 300 meters/980 feet), rising to a peak of 306 meters (1,004 feet). The tower will also take over the title of Canada's second tallest manmade structure, behind only the CN Tower.