Shanghai Tower is the world's third-tallest structure behind a building that reached its full height in which year ?
Tokyo Skytree Tokyo Skytree (東京スカイツリー , Tōkyō Sukaitsurī ) is a broadcasting, restaurant, and observation tower in Sumida, Tokyo, Japan. It became the tallest structure in Japan in 2010 and reached its full height of 634.0 m 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).
Emirates Crown Emirates Crown is a 63-floor residential tower in Dubai, United Arab Emirates. The tower has a structural height of 296 m (971 ft). Construction of the Emirates Crown began in 2005, and was completed in 2008. Upon completion, it stood as the 6th-tallest building in Dubai, and 45th-tallest building in the world.