Question: Shanghai Tower is the world's third-tallest structure behind a building that reached its full height in which year ?
Sentence (from "Tokyo Skytree"): 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).
Relevant evidence: Yes