4. THE TALLEST BUILDING IN THE WORLD

1. CN Tower

Height: 1821 feet
Location: Toronto
Built: 1975

The world's tallest freestanding structure is a telecommunications tower, an entertainment complex, a tourist attraction, and a phallic symbol for the ages. Here is evidence of architects who truly felt that size counts.

The bulge in the middle of the tower includes an observatory deck and a revolving restaurant that turns 360 degrees every hour, with a spectacular view on all sides. The downside: it's a spectacular view of Toronto.