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| | Omnipelagos.com ~ article "World's tallest structures" (Site not responding. Last check: 2007-10-29) |
 | | The first category was formerly held by the Petronas Twin Towers with 452 m (1,483 ft), and before that by Sears Towers with 443 m (1,448 ft). |
 | | The Sears Tower still leads in the fourth category with 529 m (1,736 ft), previously held by the World Trade Center until its destruction in 2001; its antenna included, it measured 536 m (1,758 ft). |
 | | The Freedom Tower of the new World Trade Center in New York City will reach 1,776 ft (541.3 metres) to its spire and about 1,100 ft (335 m) to its roof once completed in 2008. |
| www.omnipelagos.com /entry?n=world's_tallest_structures (1409 words) |
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