It became the tallest structure in Japan in 2010 Tokyo Sky Tree beats Tokyo Tower, now tallest building in Japan, The Mainichi Daily News, 29 March 2010 and reached its full height of 634 meters in March 2011, making it the tallest tower in the world, displacing the Canton Tower, and the second tallest structure in the world after the Burj Khalifa (829.8 m/2,722 ft).