OPOB / NPG

http://www.npg.si.edu/inform/renovation.html
Old Patent Office Building - now National Portrait Gallery Building Renovations
I practically lived at this building for about 3-4 years.

CN Tower has officially lost its title.

The CN Tower is no longer the world's tallest free-standing structure.... As of September 2007, the Burj Dubai became the tallest...

* There are taller TV broadcasting towers; however, these are all supported by cables and other methods and are not freestanding!

Tallest Structures in the World:
01) Burj Dubai - 2,064 feet (as of 7 April, 2008) - 160 stories now still rising (see #1 below)
02) CN Tower - 1,815 feet (highest observation plat-form at 1,465 feet)
03) Sears Tower Antenna - 1,730 feet (inhabited to 1,451 feet - roof)
**) WTC Antenna - 1,727 feet (inhabited to 1,368 feet - roof)
04) Taipei 100 - 1,671 feet (tallest inhabited building)
05) Shanghai World Financial Center - 1,614 feet
06) Troll-A Platform - 1,549 feet (highest object ever moved to a different location)
07) BREN Tower - 1,516 feet (tower for science research in Nevada)
08) Petronas Towers - 1,482 feet
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(#1) - The Burj Dubai is rumored to reach a height of 2,736 feet which would make it precisely the height of the WTC towers put atop each other.