PBS
Pbs: Building Big: Skyscrapers
Information about the basics of skyscrapers, with profiles of nine big-building wonders. Extras include a loads lab, which illustrates how and why skyscrapers stand up and keep standing up, and interviews with builders, engineers, and...
Other
Skyscraper Museum: World's Tallest Towers (1890 2004)
A graphical timeline that showcases all the buildings in the world that, at one time, held the title of world's tallest building during the time span from 1890-2004. Includes close-up illustrations of each building and numerous facts...
Other
Ties Magazine: Petronas Towers
A great introduction to one of the world's tallest buildings. The article was written in 2002 when it was the tallest building. Since then others have surpassed it. At the end of the article there is a great building challenge for students.