One World Trade Center in New York will now officially be the United States' tallest building when completed, beating out Chicago's Willis Tower. See how it stacks up to the world's tallest.
The Kingkey 100, scheduled for completion in Shenzhen, China, in late 2011, will slot in at No. 8 on this list at 1,449 feet once it opens.
The views expressed are not those of this company or its affiliated companies. Please note by clicking on "Post" you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms.